© 2026 Nanjing Finechem Holdings Co., Ltd,
All Right Reserved
Product Name: Rhodamine B
Chemical Formula: C28H31ClN2O3
Synonyms: Basic Violet 10, CI 45170
CAS Number: 81-88-9
Recommended Use: Laboratory dye, textile dye, tracer studies
Restrictions: Not intended for food or drug production
Supplier Information: Manufacturer details and emergency contact numbers are always available on official packaging.
GHS Classification: Acute toxicity (oral, category 3), Skin irritation (category 2), Eye irritation (category 2A), Carcinogenicity (category 2)
Pictogram: Skull and crossbones, Exclamation mark, Health hazard
Signal Word: Danger
Hazard Statements: May cause cancer, harmful if swallowed, causes skin and eye irritation.
Precautionary Statements: Wash hands thoroughly after handling, do not breathe dust, use in well-ventilated area, wear protective gloves, eye and face protection, avoid release to the environment.
Chemical Name: Rhodamine B
Concentration: 98–100%
Impurities: Minute traces of related organic compounds possible
Additional Notes: Composition does not include significant mixtures; purity generally remains above standard laboratory thresholds.
Inhalation: Move person to fresh air and keep comfortable, seek medical attention if symptoms develop like coughing or shortness of breath.
Ingestion: Do not induce vomiting, rinse mouth thoroughly with water, call poison control or a doctor right away.
Skin Contact: Promptly wash exposed skin with soap and plenty of water for at least fifteen minutes, remove contaminated clothing, check for persistent irritation or rash.
Eye Contact: Flush eyes thoroughly with water for at least twenty minutes lifting upper and lower lids occasionally, seek medical advice for redness, pain, or impaired vision.
Suitable Extinguishing Media: Water spray, carbon dioxide, foam, dry chemical
Unsuitable Extinguishing Media: Strong water streams may cause chemical runoff.
Special Hazards: Toxic fumes may evolve under fire conditions such as carbon oxides, nitrogen oxides, hydrogen chloride gas.
Protective Equipment: Firefighters use self-contained breathing apparatus and chemical-resistant clothing.
Additional Advice: Evacuate surrounding area, prevent runoff from entering water sources.
Personal Precautions: Wear gloves, goggles, and protective clothing; avoid inhaling dust or direct contact with skin and eyes.
Environmental Precautions: Prevent spills from reaching drains, surface water, or soil.
Containment: Sweep up and collect spilled material carefully with minimal dust generation, use non-sparking tools.
Cleanup Methods: Place in suitable closed containers for disposal, ventilate area, wash residues with plenty of water.
Handling: Use only in a chemical fume hood or well-ventilated setting, avoid dust formation, do not eat or drink where the dye is handled, always wash hands after use, keep away from strong acids and oxidizers.
Storage: Store tightly closed in a cool, dry, and well-ventilated area; keep away from sunlight and incompatible materials such as strong oxidizing agents; containers remain upright and clearly labeled.
Engineering Controls: Adequate local exhaust recommended, eyewash stations, emergency showers present nearby.
Eye/Face Protection: Safety goggles or face shield.
Skin Protection: Chemical-resistant gloves, lab coats, or coveralls.
Respiratory Protection: Dust mask or NIOSH-approved respirator if dust concentration becomes significant.
Hygiene Measures: Do not eat, drink, or smoke during handling, remove contaminated clothing and wash before reuse.
Appearance: Purple to reddish-violet crystalline powder
Odor: Odorless or faint aromatic odor
Melting Point: 210-211°C
Solubility: Soluble in water and alcohol
pH: Aqueous solution forms acidic pH
Boiling Point: Decomposes before boiling
Vapor Pressure: Negligible at room temperature
Flash Point: Not flammable under standard use
Partition Coefficient (log Kow): 1.85
Other: Stable under normal laboratory and industrial uses; characteristic fluorescent emission under UV light.
Chemical Stability: Stable under recommended storage, sensitive to excessive heat, light, and strong acids.
Incompatible Materials: Oxidizing substances, strong acids.
Hazardous Decomposition Products: Produces toxic oxides of carbon, nitrogen, and chlorine with heat or fire.
Hazardous Polymerization: Does not occur under normal handling.
Acute Toxicity: Oral LD50 in rats reported around 500 mg/kg; harmful if swallowed or inhaled.
Skin Corrosion/Irritation: Causes irritation on direct contact.
Serious Eye Damage/Irritation: Causes redness, watering, and discomfort.
Carcinogenicity: Some studies suggest links to possible cancer risk in animals; not classified as carcinogenic by IARC in humans but still treated cautiously.
Reproductive Toxicity: Not indicated under normal use but long-term unprotected contact discouraged.
Additional Notes: Headache, nausea, or dizziness may occur after overexposure to dust or vapor.
Aquatic Toxicity: Harmful to aquatic organisms even at low concentrations.
Persistence and Degradability: Tends to persist in environment due to resistance to natural breakdown.
Bioaccumulative Potential: Moderate; can concentrate within aquatic systems and organisms.
Mobility in Soil: Moderate to low mobility, potential for water contamination through runoff.
Other Adverse Effects: Can interfere with biological wastewater treatment processes, toxic to algae and small crustaceans.
Waste Treatment Methods: Dispose of as hazardous waste through licensed chemical disposal contractor; do not discharge to drains, surface water, or soil.
Container Disposal: Triple rinse containers and discard according to local hazardous waste protocols; do not reuse empty drums for other purposes.
Additional Precautions: Follow all local, regional, and national regulations for chemical disposal.
UN Number: UN 3077 (Environmentally hazardous substance, solid, n.o.s.)
Proper Shipping Name: Environmentally hazardous substance, solid, n.o.s. (contains Rhodamine B)
Transport Hazard Class: 9 (Miscellaneous dangerous substances)
Packing Group: III
Marine Pollutant: Yes
Special Precautions: Ensure secure and labeled packaging; emergency contact and spill procedures loaded with transport manifests.
U.S. TSCA Inventory: Listed
EU REACH Status: Registered
OSHA Status: Hazardous
SARA Title III Sections 302/304: Not listed as an extremely hazardous substance
SARA Title III Section 313: Listed for release reporting
Canadian DSL/NDSL: Listed
Labeling Requirements: Clear hazard statements and signal words as regulated by GHS and local authorities.
