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Product Name: Coronatine
Chemical Nature: Phytotoxin, secondary metabolite produced by certain strains of Pseudomonas syringae
Physical Form: Typically appears as white to off-white powder
CAS Number: 54807-41-1
Molecular Formula: C24H27NO5
Primary Use: Research reagent in plant pathology and physiology, rarely found outside specialized laboratories
Synonyms: No common trade names; known strictly by scientific designation Coronatine
Significance: Since substances like Coronatine turn up in research whenever scientists explore plant defense responses, they carry more baggage than most chemicals. You won’t find detailed hazard data, and that matters for handling.
Major Hazards: Irritant effect on skin, eyes, and respiratory tract; toxic if swallowed
Routes of Exposure: Dust inhalation, skin and eye contact, ingestion
Signs of Overexposure: Potential for irritation or allergic reactions, with symptoms like redness or itching on skin, discomfort or pain in eyes, possible throat irritation if inhaled
Acute Toxicity: Data limited, though reports of toxic effects in experimental animal exposures do exist
Chronic Health Concerns: Long-term impacts not fully studied in humans; some concern over cytotoxicity
Label Elements: Laboratory use only, apply highest level of caution
Personal Concern: The unknowns surrounding many plant-derived compounds keep lab staff on their toes. The rarer the chemical, the fewer safety precedents you get.
Main Ingredient: Coronatine (purity often exceeds 95 percent in lab-grade samples)
Impurities: Minor amounts of structurally similar metabolites possible due to microbial synthesis, but specifics rarely disclosed in open literature
Mixture or Single Substance: Treated as a single defined compound in most lab contexts
Source: Produced biotechnologically; not commercially available for agriculture or industry
Takeaway: Handling pure forms means limited margin for error—every gram demands respect.
Eye Exposure: Rinse immediately with plenty of water for at least 15 minutes, holding eyelids apart
Skin Exposure: Remove contaminated clothing, wash thoroughly with soap and water
Inhalation: Move person to fresh air, seek medical attention if symptoms persist
Ingestion: Rinse mouth with water, do not induce vomiting, seek medical advice
User Insight: Most research teams keep eyewash stations and safety showers nearby, since small mistakes often become urgent. Anyone working with unknown compounds picks up a habit of treating all exposure with extra care.
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Special Hazards: Potential toxic fumes under combustion—Nitrogen oxides and carbon oxides
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear
Risk Assessment: Powdered organics like this don’t always ignite easily, but heating any unknown chemical in a fire brings risks you can’t predict. Departments running chemistry labs value strict protocols during emergencies.
Personal Precautions: Avoid inhalation of dust, wear gloves, lab coat, protective eyewear, and mask
Environmental Precautions: Prevent runoff into drains; do not introduce to aquatic environments
Cleanup Methods: Use HEPA-filter vacuum for dry spills, dampen carefully to avoid dust formation, collect in sealed containers for disposal
Workplace Wisdom: Fast, careful cleanup prevents further spread. Most spills happen when people get careless near benchtops—real lab culture stresses a slow, deliberate pace over speed.
Handling: Use only in chemical fume hoods, avoid inhalation and contact, keep containers tightly sealed
Storage: Protect from light, store at low temperature (commonly -20°C), keep away from incompatible substances (oxidizers, strong acids, bases)
Personal Notes: Unusual toxins like this force researchers to rethink accessibility and label vigilance. Misplacing even small amounts leaves everyone exposed to unknowns.
Engineering Controls: Local exhaust ventilation, certified fume hoods
Personal Protective Equipment: Lab gloves (nitrile recommended), chemical splash goggles, lab coats, face masks
Occupational Limits: No established regulatory limits; default to general chemical exposure guidelines
Experience: Because rare chemicals lack detailed toxicology, lab staff tend to over-protect rather than take chances. Some labs rotate out personnel to limit sustained exposure.
Appearance: Crystalline or powder
Color: White to off-white
Odor: Odorless
Solubility: Readily soluble in common organic solvents, low solubility in water
Melting Point: Data not widely available—requires specialized analysis
Vapor Pressure: Essentially negligible under room conditions
Reactivity: Stable under recommended storage conditions
Lessons on Context: Researchers prize keeping compounds like Coronatine properly sealed to preserve sample integrity. Reported loss through volatility or decomposition means lost time and money.
Stability: Stable at recommended storage temperature, light-sensitive
Incompatible Materials: Strong oxidizers, acids, bases
Decomposition Products: Potentially hazardous (e.g., CO2, NOx) under high heat
Personal Application: Unfamiliar chemicals ask for extra respect, especially around strong reagents—the chemical fume hood becomes not just a guideline but a trusty partner.
Acute Toxicity: Little comprehensive data for human exposure; inferred toxicity from animal studies
Skin, Eye, Respiratory Irritation: Marked irritant, can cause inflammation
Allergenic Potential: Possible but not studied systematically
Carcinogenicity: No available data on long-term cancer risk
Mutagenicity/Teratogenicity: Unreviewed in humans
Direct Lessons: Regular users are reminded that rarity does not mean safety. The scarcity of data prompts extra caution and regular cross-checking of any new publication referencing safety.
Aquatic Toxicity: No detailed studies in open literature, suspected harmful to aquatic organisms due to known phytotoxic mechanism
Persistence/Degradability: Degradation in environment not well characterized
Bioaccumulation: No conclusive information
Take-home Message: Laboratories dealing with unique molecules tend not to guess about environmental impact. Best practice keeps all waste locked away from drains or external air passages.
Waste Handling: Collect contaminated materials, containerize, consult hazardous material disposal services
Regulation: Treat as hazardous waste; do not dispose via household or standard lab refuse
Lab Habits: More and more institutions push for audits and logs on chemical disposal. Any ambiguity in rules, most choose the safest route, erring on the side of containment.
UN Classification: Not assigned, but shipped as laboratory chemical
Transport Precautions: Use leak-proof, clearly labeled packaging, temperature regulation advised
Advice from the Field: Nobody wants a courier mishap; double-bagging and secure labeling matter more for rare and irreplaceable substances.
Global Inventory Status: Not listed for general manufacture, sale, or use; strictly research chemical
Occupational Safety: Complies with general chemical safety laws, such as OSHA’s Laboratory Standard in the U.S.
Other Regulation: Subject to stricter internal controls at universities and private labs due to unknowns
On the Ground: Research on obscure chemicals highlights a gap—regulatory bodies can’t always keep up with the pace of discovery. Until more is known and official guidance catches up, every new study or report helps shape how people handle, store, and dispose of such chemicals.
