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N,N'-Methylenebisacrylamide’s story threads through decades of science labs and manufacturing sites, a testament to chemical innovation solving real problems. Chemists working on polyacrylamide networks in the mid-20th century reached for crosslinkers, aiming for gels that could keep their shape under scrutiny and stress. The synthesis of N,N'-Methylenebisacrylamide marked a turning point. Its introduction provided a stable, reliable way to link acrylamide units, and researchers quickly found that electrophoresis and water purification both benefited. Textbooks and patents from as early as the 1950s show this chemical’s migration from niche additive to staple in academic and industrial protocols, showing its strong utility over time.
N,N'-Methylenebisacrylamide usually finds use as a colorless crystalline powder. Those who work with it notice right away how it dissolves in water, yet maintains its structure enough for controlled reactions. Packaging often involves moisture-proof containers, usually in amounts from a few grams for research all the way up to large shipments for water treatment plants. Commercial demand centers around its function as a crosslinking agent, setting it apart from regular acrylamide by providing a two-link reach that bolsters networks in polymers or gels, key in everything from laboratory analyses to waste water solutions.
In labs, handling N,N'-Methylenebisacrylamide puts a user in touch with a solid that melts around 185–190 °C and gives off little odor. The molecular formula, C7H10N2O2, leads to a molecular weight near 154.17 g/mol. It dissolves best in water or polar solvents, stays stubborn in non-polar conditions, and resists simple decomposition as long as it remains dry and cool. Chemists find that the methylene bridge linking the acrylamide units gives the compound not only stability, but a unique reactivity useful for initiating polymer chains that stay crosslinked even after repeated use or stress.
Most bottles on the shelf bear labels listing a purity of at least 98%. Labels cite UN chemical identifiers and GHS hazard symbols due to its recognized irritant and toxic properties. Manufacturers who hold ISO 9001 or similar certification show traceability batch-by-batch. Technicians accustomed to regulatory paperwork notice references to relevant EC numbers, recommendations for protective gear, and instructions to store the material away from light and moisture. Barcode tracking and batch testing help prevent contamination in high-precision settings like clinical laboratories.
N,N'-Methylenebisacrylamide is prepared by reacting acrylamide with formaldehyde under mildly basic conditions. The presence of a catalyst—commons in industrial-scale synthesis—ensures high yield and structural consistency. After mixing, chemists use filtration to separate the solid, then several steps of washing and recrystallization follow to remove unreacted acrylamide and trace formaldehyde. Finely tuned reaction temperatures and pH values guarantee quality, and production facilities test every lot for residual monomers to avoid hazardous exposure down the line.
In polymer chemistry, the double bonds on each acrylamide moiety make N,N'-Methylenebisacrylamide reactive in radical polymerization. When researchers ladle it into acrylamide solutions alongside an initiator, the chemical weaves through growing chains, creating crosslinked gels. Tweaking the concentration offers control over gel pore size and mechanical strength. Chemists sometimes modify the structure further—introducing functional side groups for specific interactions such as affinity purification or tuning response to temperature or pH. These modifications inform everything from analytical chemistry protocols to in-vitro diagnostics.
Those in research or production recognize the compound under several names: Methylenebisacrylamide, N,N'-Methylenebis(acrylamide), and even MBAA on shipping manifests and laboratory supply invoices. Major suppliers sometimes use catalog codes or reference trade names, though most practitioners just call it “bisacrylamide.” This wide recognition under various synonyms means researchers and industrial users rarely confuse it for other crosslinkers, adding to safety and consistency.
Anyone handling N,N'-Methylenebisacrylamide deals directly with health and safety. Contact with skin or inhalation of dust causes irritation, as lab accident reports have shown. Safety data sheets highlight the need for gloves, goggles, and lab coats. Proper ventilation and sealed storage containers steer clear from accidental inhalation exposure. Facilities committed to environmental stewardship collect and neutralize chemical waste, following both OSHA and REACH guidelines to minimize environmental impact. Regular training and health monitoring promote a culture of safety around high-use zones like water treatment plants and research labs.
Labs conducting protein electrophoresis see N,N'-Methylenebisacrylamide as essential. Its use in forming polyacrylamide gels enables precise separation of proteins and nucleic acids. This precise control, the reason many discoveries in molecular biology even happened, hinges on the compound’s bridging action, allowing gels to form pores that sift molecules by size. Hydrogel producers also rely on it, making products ranging from contact lenses to absorbent wound dressings. Industrial facilities working on water purification systems use its crosslinking power to trap particulates or remove contaminants, protecting public health. Mining operations treat tailings with polyacrylamide matrices stabilized by bisacrylamide, where chemical stability in harsh environments boosts yield and reduces environmental runoff.
Developers looking for smarter, safer, and more sustainable materials continue to experiment with N,N'-Methylenebisacrylamide. Projects underway try to swap out traditional crosslinkers for “greener” alternatives, yet its reliability keeps it in the running for high-stakes lab tests. Ongoing research combines bisacrylamide-based gels with nanoparticles or responsiveness to stimuli like temperature, light, or even magnetic fields, opening doors to advanced drug delivery systems and biosensors. Researchers in genomics and proteomics also tweak gel recipes to widen or narrow pores, chasing ever-finer resolution as new analytical needs arise. Each cycle of research uncovers new combinations, new protocols, and potential for better yields or sharper results in everything from sequencing to purification.
Health authorities have studied the toxicity profiles of N,N'-Methylenebisacrylamide and its breakdown products in detail. Experiments test for acute and chronic effects on skin, eyes, and lungs, since field experience shows workers risk contact during spills, poor handling, or disposal. Rodent studies link high exposure to mutagenic effects, though at much higher doses than routine laboratory or industrial use. Recent literature highlights that thorough handwashing, proper respiration barriers, and smart engineering reduce the risk for those nearby. Scientists continue to monitor environmental persistence, evaluating methods for safe degradation and cleanup. Advocacy for clear product labeling and improved workplace air quality standards remains strong among unions and regulators.
The demand for precision chemistry and advanced materials assures a steady place for N,N'-Methylenebisacrylamide in the future. Environmental agencies want safer alternatives and clearer disposal protocols, and innovation in low-toxicity crosslinkers could one day overtake it in sensitive applications. Yet, for now, the compound’s role in reliable gel formation and polymer crosslinking leaves it entrenched in diagnostics, purification, and material science. As projects in regenerative medicine and smart materials progress, research pushes the boundaries—some groups try adding bioactive or biodegradable links to standard structures, hoping to keep the mechanical benefits but reduce persistence after use. The future likely belongs to those who keep both performance and human safety front-of-mind in every new development.
N,N'-Methylenebisacrylamide (MBAA) sounds like an ingredient you’d find in a high-tech chemistry kit. Walk into any college biology lab, and you’ll probably spot it near the workbench. It often shows up around electrophoresis setups, where students split apart proteins by their size so they can see what’s going on inside a cell—or even confirm a disease diagnosis.
Here’s where my own science major days pop up. Loading up those polyacrylamide gels, my hands always shook at the risk of spilling this stuff. MBAA isn’t doing the job alone, though. It links up long chains of acrylamide to make a mesh, turning liquid into a springy, clear slab. These “gels” sort molecules with surprising accuracy, a trick that’s hard to beat for pure clarity in molecular research.
Switch over to hospitals, research centers, or even small clinics. Modern diagnostic tests still lean on MBAA gels, especially in tests detecting proteins that reveal cancer or infections. Polyacrylamide gels map out protein fingerprints, letting pathologists match samples to diseases.
Doctors and researchers say they couldn't run certain key tests without this type of gel. A faulty or uneven gel can ruin weeks of work. It’s not something you want to mess up, with people’s lives often riding on the results.
Funny enough, N,N'-Methylenebisacrylamide slips past most public attention, even as it shapes clean water for drinking. Water treatment plants use polyacrylamide-based gels and beads to filter particles and gunk out of the supply. Scientists adjust these beads for different pollutants, thanks to MBAA’s flexible chemistry.
My local water utility once opened its doors for a tour, and the chemistry nerds in the group immediately flocked to the filtration room. The experts there explained, with a chuckle, how this family of chemicals makes their job possible. They get reliable filtering, fast. Few complain when their tap water pours crystal clear, never realizing MBAA helped along the way.
Acrylamide itself carries health risks—chronic exposure links to nerve irritation and higher cancer risks. MBAA, while a different chemical, still deserves respect. Good safety gear, careful handling, and professional training prevent most problems, and watchdogs like the CDC track these hazards closely.
Talking to my own mentors, some worry new students don’t treat it seriously enough. Signs and protocols in labs spell out the basics, though, and accidents remain rare in established facilities. Still, everyone remembers that one burned glove or spilled beaker, and those stories spread quickly.
Scientists keep searching for alternatives. Plant-based gels, synthetic hybrids, and innovations in nanotech may reduce reliance on chemicals like MBAA soon. Until then, the key rests with strong training and smart regulation. Open data from research, patient advocacy, and transparent supply chains all help protect public health and make sure science does its work safely and honestly.
N,N'-Methylenebisacrylamide helps tie together the polyacrylamide gels used in labs, especially in protein studies. Scientists know it well, since every time they build a gel for separating proteins or DNA, this chemical locks the whole structure in place. Its role seems small, but it holds a lot of weight in molecular biology work.
Interacting with N,N'-Methylenebisacrylamide isn't like working with sugar or flour. This substance contributes to advancing scientific understanding, but it brings stubborn risks. Studies describe it as hazardous, especially before it reacts and hardens in a gel mix.
First problem: exposure to the powder or liquid means the body absorbs it faster than some realize. Warnings from chemical suppliers agree—contact with skin, inhaling dust, or splashes in the eyes can cause irritation or even lasting health issues. Once inside, animal tests flag cancer links and toxic effects, especially if handled carelessly or over long periods.
Plenty of researchers, including graduate students and lab staff, approach these gels day after day. Most follow safety routines, but in busy labs people do forget gloves, spill powder, or pipette without a mask. The rush to finish experiments sometimes leads to shortcuts. That’s where trouble begins.
Germany’s Environmental Protection Agency flagged N,N'-Methylenebisacrylamide as “suspected carcinogenic,” and similar agencies classify it as hazardous. Workers using it in manufacturing settings come across higher concentrations and more dust than lab scientists. The risk multiplies if basic air filtration lags behind or if personal protection drops.
Official safety data tells people to wear gloves, a lab coat, eye protection, and to work under a fume hood. The reality: not every lab comes equipped, and not every shift includes proper training. I’ve witnessed confusion over disposal: a container half-full of leftover mix gets left miles away from the hazardous waste bin, or a powder jar sits without a lid. Those tiny mistakes put everyone in the room at risk, not just the one holding the bottle.
Training stands at the center of protecting people. Running a short, hands-on session on handling, spill response, and disposal—far more than just sending around digital safety sheets—makes an impact. Auditing safety routines and updating them after every accident or near miss saves headaches and health in the long haul. Safer alternatives exist for some applications, but switching them in means honest conversation between researchers, suppliers, and budget officers.
N,N'-Methylenebisacrylamide remains essential for certain lab procedures, but using it without care spells trouble for people and the environment. Awareness mixed with practical protections beats assuming past habits are good enough. Every time this chemical opens in a workspace, a little vigilance and a little education go much further than luck.
N,N'-Methylenebisacrylamide, a staple for polyacrylamide gel prep, draws attention because it doesn’t always behave nicely. I learned that even a clean, well-organized lab can face unexpected accidents if chemicals like this crosslinker aren’t respected. Stories of gunky bottles, vapor leaks, and skin rashes float around every research department. Everyone who’s spent time near electrophoresis gels knows the sharp odor and the crust that appears if the jar isn’t closed tight.
This compound reacts to heat, light, and humidity. Leave a bottle on the bench through a muggy summer weekend, and you’ll find caked crystals or worse, a sticky mess. A fridge without a freezer compartment at 2–8°C gives better shelf life. Tossing it in a regular office fridge isn’t just lazy, it’s careless—food and chemicals just shouldn’t share cold space. And direct sunlight on a benchtop can set off unwanted reactions. That’s asking for degraded stock or impurity headaches.
I’ve seen too many students screw up experiments with contaminated bisacrylamide from jars left too long open. Moisture or light turns samples yellow and lumpy, and degraded material can release toxic vapors. A tight cap and an amber bottle keep most problems in check. Polypropylene or glass works, but always mark dates and keep a log to avoid surprise spoilage.
N,N'-Methylenebisacrylamide brings real risks. It irritates skin and lungs, so any storage solution needs to block dust or fumes from escaping. Personal experience taught me to stash related chemicals together in a well-labeled secondary container lined with absorbent pads. This habit kept me from cleaning goo out of drawers more than once. Never trust a leaky cap or a cracked lid. Decanting into smaller bottles for daily use also reduces accident risk.
The solution looks simple: separate it from food or drink, never store near acids, bases, or oxidizers, and always use gloves when touching the container. More than once, I watched colleagues handle powder “just for a second,” only to regret the rash a few hours later. Respirator masks and a well-ventilated area do more than check off a safety box—they stop headaches, coughs, and bigger problems down the road.
I like to keep an inventory spreadsheet, with open dates and batch numbers, so no one grabs a bottle past its prime. Safety officers appreciate this, and it prevents awkward moments hunting for paperwork during inspections. Stocking only enough for a few months’ use limits waste and the urge to cut corners with older batches.
Eventually, leftover or expired N,N'-Methylenebisacrylamide needs secure disposal. Local rules differ, but it rarely goes in the sink. Hazardous waste bins marked for organic solids fit the bill. Letting authorities handle the rest avoids exposure for everyone else in the building.
Every detail in storage affects lab safety and research quality. Respecting those lessons, learned the hard way or from a mentor’s warning, makes the difference.
Any lab worker recognizes the value of a clear chemical identification system. The CAS number, short for Chemical Abstracts Service number, assigns a unique tag to each chemical, sweeping confusion off the bench. For N,N'-Methylenebisacrylamide, the CAS number is 110-26-9. From personal experience, those ten digits can turn hours of ingredient verification into a simple cross-check, making the process safer and more transparent.
N,N'-Methylenebisacrylamide serves as a vital crosslinker in polyacrylamide gel formation. Most people in biotech, forensics, or wastewater treatment run into it sooner or later. Its role in setting the rigidity and pore size of a polyacrylamide gel makes lab results consistent—the real backbone behind protein separation techniques like electrophoresis. Reliable gels translate into clear scientific answers, so this compound often finds itself near the center of upstream experiments.
With chemicals, mislabeling quickly spirals into disaster. I remember a shared freezer in our graduate lab: different bottles marked “bisacrylamide” with hand-written sticky notes. Bottles from different suppliers, a few unknown sources mixed in. One misplaced number on a purchase order or in a lab notebook messes up months of reproducible work. That’s why a CAS number—here, 110-26-9—works like a fingerprint. Suppliers, regulators, and researchers around the world use the same identifier. Accidents and cross-contamination shrink because everyone speaks the same chemical language.
Handling N,N'-Methylenebisacrylamide isn’t the same as scooping sugar. Exposure has real risks, and safe storage and handling rest on knowing exactly what's in the bottle. Databases and regulatory sheets use the CAS number to unlock safety details and health data. Pull up any Material Safety Data Sheet with 110-26-9, and you'll get the whole safety profile without sorting through guesswork or ambiguous labels.
Teaching newcomers or students about these systems makes a difference. Standardizing identification in inventories and introducing future chemists to reliable cataloging helps labs run more smoothly. Simplifying supply orders—never letting someone guess which "bis" landed in the shipment—keeps experiments on track and stress low.
Beyond the lab, clear chemical cataloging empowers authorities stopping illegal shipments or investigating accidental exposures. Open-access databases listing substances by their CAS number mean accurate information lands in anyone’s hands, not just in major research hubs.
I recommend writing the CAS number on every label. If the label wears off or confusion hits, referencing 110-26-9 means you can always reconnect with the chemical’s identity. Building these habits only takes a few extra seconds, but it spares future confusion, wasted resources, and possibly dangerous mix-ups.
Better training, digital inventory systems, and vigilance in the use of CAS numbers lift the whole scientific process. For N,N'-Methylenebisacrylamide, as well as thousands of other compounds, one small piece of data brings clarity and efficiency to a field relying on precision.
Every chemist who has spent time with electrophoresis or polymer chemistry has crossed paths with N,N'-Methylenebisacrylamide, often just called “bis.” This powdery chemical may look mild, but it comes with risks you can’t overlook. It’s a skin and respiratory irritant, and there’s a real concern about its toxicity and possible carcinogenicity. I still remember my first year in a research lab—just reading the label made me think twice before opening the bottle. The respect this chemical gets from both new students and seasoned researchers has everything to do with the set of safety protocols everyone follows without shortcuts.
Whether you are making a simple polyacrylamide gel or prepping a big batch for a protein analysis, the basics start the same. You slide on gloves—preferably nitrile, since latex can give a false sense of safety—and never leave your skin exposed. Lab coats get buttoned. Safety goggles go on every single time. Most research labs post clear warning signs around the fume hood where bis is weighed and dissolved. Fume hoods aren’t just for show; they’re essential because inhaling bisacrylamide powder isn’t something anyone wants to risk.
Weighing bisacrylamide always brings out the neat freak in everyone. The unpredictability of powders in the air quickly trains you to avoid fast or messy scooping. Accidental spills around the balance area happen, and that’s why lab benches near the work area stay clear—contamination can travel to your hands, notebook, or even your personal items. I once saw a colleague accidentally brush powder from the balance onto her phone. It took a full glove change and a good cleaning before she felt comfortable picking it up again.
Dissolving bisacrylamide means working with double-layer gloves, good ventilation, and a methodical process. Breathing in vapors or letting the solution touch your skin isn’t worth the risk, and the focus shows in how everyone in the lab prepares and labels their containers. Solutions get marked with clear warnings. Used gloves and wipes go immediately into a designated hazardous waste bin. Proper disposal isn’t negotiable, either. Bisacrylamide solution waste never goes down the regular drain—university protocols or institutional SOPs demand you use certified chemical disposal procedures. There’s a real sense of shared responsibility because nobody wants regulatory trouble or to harm the environment.
Safety training isn’t a bureaucratic box to tick before handling bisacrylamide. Regular refreshers, chemical-specific hazard information, and hands-on demonstrations create a culture where everyone looks out for each other. I’ve seen new grad students guided step-by-step until they nail every part of the process. This mentorship means near misses get flagged and discussed, not ignored. Mistakes still happen, but learning from them has shaped better safety habits across the team.
Some labs now search for lower-risk alternatives or pre-cast gels to limit direct exposure. While bis isn’t going away soon—its unique polymer-crosslinking properties keep it a standby—the industry keeps evolving. Researchers push suppliers to offer safer packaging and staff always ask for constant updates to safety protocols. As more information on long-term exposure becomes available, these efforts make a difference. Speaking from experience, working in a lab with these habits not only keeps people safer, but also builds trust and confidence in the research environment.
| Names | |
| Preferred IUPAC name | N,N'-methylenebis(prop-2-enamide) |
| Other names |
Methylenebisacrylamide N,N′-Methylenebisacrylamide MBAA Bisacrylamide N,N′-Methylenediacrylamide 1,2-Propanediol bis(acrylamide) N,N-Methylene-bis-acrylamide |
| Pronunciation | /ˌemˌemˌmɛθ.əˌliːn.baɪs.əˈkrɪl.ə.maɪd/ |
| Identifiers | |
| CAS Number | 110-26-9 |
| 3D model (JSmol) | `3DModel:JSmol={"mol":"C(C(=O)N)CNC(=O)C=C"}` |
| Beilstein Reference | 1842767 |
| ChEBI | CHEBI:61134 |
| ChEMBL | CHEMBL1233350 |
| ChemSpider | 6820 |
| DrugBank | DB04451 |
| ECHA InfoCard | 100.006.291 |
| EC Number | 203-750-9 |
| Gmelin Reference | 82748 |
| KEGG | C06192 |
| MeSH | D008685 |
| PubChem CID | 7403 |
| RTECS number | SR9450000 |
| UNII | 7BBV0520S5 |
| UN number | “UN2811” |
| CompTox Dashboard (EPA) | DJVJYDOLYIGNBG-UHFFFAOYSA-N |
| Properties | |
| Chemical formula | C7H10N2O2 |
| Molar mass | 154.17 g/mol |
| Appearance | White crystalline powder |
| Odor | Odorless |
| Density | 1.235 g/cm³ |
| Solubility in water | Soluble in water |
| log P | -0.5 |
| Vapor pressure | 0.0051 mmHg (25°C) |
| Acidity (pKa) | 12.38 |
| Basicity (pKb) | pKb ≈ 13.6 |
| Magnetic susceptibility (χ) | -6.1 x 10^-6 cm³/mol |
| Refractive index (nD) | 1.515 |
| Viscosity | 1.3 cP (20 °C) |
| Dipole moment | 4.46 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 275.6 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -197.6 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -1930 kJ/mol |
| Hazards | |
| Main hazards | Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause an allergic skin reaction. Suspected of causing genetic defects. |
| GHS labelling | GHS02, GHS07, GHS08 |
| Pictograms | GHS07,GHS08 |
| Signal word | Warning |
| Hazard statements | H302 + H312 + H332: Harmful if swallowed, in contact with skin or if inhaled. H319: Causes serious eye irritation. H317: May cause an allergic skin reaction. H351: Suspected of causing cancer. |
| Precautionary statements | P210, P261, P280, P302+P352, P305+P351+P338, P308+P313 |
| Flash point | > 199.6°C |
| Autoignition temperature | 438 °C |
| Lethal dose or concentration | LD50 oral rat 390 mg/kg |
| LD50 (median dose) | LD50 (median dose) = 390 mg/kg (mouse, oral) |
| NIOSH | NIOSH: SR2800000 |
| REL (Recommended) | 0.05 mg/m3 |
| IDLH (Immediate danger) | 20 mg/m3 |
| Related compounds | |
| Related compounds |
Acrylamide Polyacrylamide Ethylene glycol dimethacrylate N,N′-Ethylenebisacrylamide Methylenedianiline |
