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Product Name: Bromocresol Green
Synonyms: o-Cresolsulfonphthalein; BCG
CAS Number: 76-60-8
Molecular Formula: C21H14Br4O5S
Molecular Weight: 698.0 g/mol
Recommended Use: Laboratory reagent, pH indicator
Supplier: Laboratory chemical suppliers, research institutions
Emergency Contact: Provide number from safety office or poison control
Product Description: Solid powder dye with green to blue appearance depending on pH
GHS Classification: Not classified as hazardous according to current GHS
Signal Word: None required
Hazard Statements: May cause skin and eye irritation with direct exposure; inhalation of dust may irritate respiratory tract; ingestion could cause discomfort
Pictograms: None required for this product
Precautionary Statements: Avoid breathing dust; wash hands after use; wear protective gloves, eye protection, and a lab coat
Routes of Exposure: Skin, eyes, inhalation, ingestion
Target Organs: Eyes, skin, respiratory system
Chemical Name: Bromocresol Green
Concentration: ≥99% pure (laboratory grade)
Impurities: Possible trace impurities from manufacturing (no significant effect or hazard)
CAS Number: 76-60-8
Inhalation: Move person to fresh air, seek medical attention if symptoms persist, rest and monitor for difficulty breathing
Skin Contact: Wash contact area with plenty of water and soap, remove contaminated clothing, medical attention for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, seek medical advice for redness or pain
Ingestion: Rinse mouth with water, do not induce vomiting, seek medical advice if feeling unwell
Symptoms: May include irritation, redness, coughing, stomach upset
Suitable Extinguishing Media: Use dry chemical, foam, carbon dioxide, or water spray for surrounding materials
Specific Hazards: Combustion produces toxic fumes including carbon oxides, sulfur oxides, hydrogen bromide
Protective Equipment: Firefighters use self-contained breathing apparatus and full protective clothing
Advice for Firefighters: Cool unaffected containers with water spray, avoid inhaling smoke or fumes
Explosion Hazards: Not known to be explosive under normal conditions
Personal Precautions: Wear gloves, safety goggles, laboratory coat or equivalent
Environmental Precautions: Prevent from entering drains, surface water, or soil
Clean-up Procedures: Sweep or scoop up solid material and transfer to appropriate waste container, avoid creating dust, ventilate area
Decontamination: Wash spill site with soap and water
Handling: Use in well-ventilated area, keep container tightly closed, avoid dust formation, avoid contact with skin or eyes, use proper PPE
Storage: Store in cool, dry, well-ventilated location, protect from light and moisture, keep away from incompatible substances like strong oxidizers
Safe Packaging: Use suitable containers with clear labeling, avoid glass breakage risk
Special Handling Considerations: Implement routine hygienic measures; do not eat, drink, or smoke in work area
Engineering Controls: Use fume hood or adequate ventilation, eye wash stations and safety showers recommended
Exposure Limits: No specific OSHA, ACGIH, or NIOSH exposure limits established
Respiratory Protection: Dust mask or NIOSH-approved respirator when handling powder
Eye Protection: Chemical safety goggles
Skin Protection: Nitrile or latex gloves, lab coat
Hygiene Measures: Wash hands thoroughly before breaks or leaving lab, remove contaminated clothes
Appearance: Green to blue solid powder
Odor: Odorless
Melting Point: Decomposes above 220°C
Boiling Point: Not applicable (decomposes before boiling)
Solubility: Slightly soluble in water, soluble in alcohols
pH (solution): Color changes yellow in acidic, blue in basic pH (indicator range pH 3.8–5.4)
Molecular Weight: 698.0 g/mol
Density: Not available
Vapor Pressure: Negligible
Partition Coefficient: Not available
Flash Point: Not applicable (non-volatile solid)
Chemical Stability: Stable under recommended storage and handling conditions
Incompatible Materials: Strong oxidizing agents, strong acids
Conditions to Avoid: Excessive heat, moisture, light
Decomposition Products: Carbon monoxide, carbon dioxide, sulfur oxides, bromine compounds
Reactivity: Not reactive under normal operating conditions
Acute Toxicity: Limited data; low oral and dermal toxicity anticipated; not considered acutely toxic
Skin Contact: May cause mild irritation
Eye Contact: May cause redness, irritation
Inhalation: Prolonged exposure to dust may irritate respiratory tract
Ingestion: Low toxicity, may cause upset stomach, nausea
Chronic Exposure: No evidence of mutagenicity or carcinogenicity according to available data
Other Effects: Not classified as a hazardous substance by IARC, NTP, OSHA
Aquatic Toxicity: Harmful to aquatic environments if released in significant quantities
Persistence and Degradability: Not expected to undergo significant degradation in soil or water
Bioaccumulative Potential: Potential for bioaccumulation in aquatic organisms exists due to low solubility
Mobility in Soil: Limited, binds to soil particles
Additional Information: Prevent large releases to surface water, follow local procedures for contamination prevention
Waste Disposal: Dispose as chemical waste in accordance with local, regional, national, and international regulations
Contaminated Packaging: Triple rinse and dispose of container as hazardous waste
Disposal Methods: Incineration preferred for small quantities; do not discharge to sewers or waterways
Environmental Precautions: Prevent runoff to soil or water; avoid uncontrolled disposal
UN Number: Not regulated as dangerous goods for transport
Proper Shipping Name: Not regulated
Transport Hazard Class: Not assigned
Packing Group: Not applicable
Marine Pollutant: Not classified
Special Precautions: Avoid spillage, keep container securely closed during transport
OSHA Status: Not listed as hazardous
TSCA Inventory: Listed
SARA Title III: Not listed as a reportable substance
REACH Status: Complies with registration requirements
Canadian WHMIS: Not controlled
Other Regulations: Conform with all local, regional, and national laws for handling chemical products
Labeling Requirements: Clearly indicate substance name and hazards where applicable
