Substance Name: 2-Hydroxybenzimidazole
Chemical Formula: C7H6N2O
Synonyms: Benzimidazol-2-ol
CAS Number: 615-16-7
Recommended Use: Chemical intermediate, laboratory reagent
Manufacturer Information: Supplier contact details available on product label
Emergency Contact: Refer to hazardous chemical registration in your region
Hazard Classification: May cause skin and eye irritation, respiratory irritation
Signal Word: Warning
Hazard Statement(s): Harmful if swallowed, irritating to skin, eyes, and respiratory system
Pictograms: Exclamation mark
Precautionary Statements: Wash hands thoroughly after handling, wear protective clothing, avoid breathing dust, obtain medical attention if discomfort occurs
Component: 2-Hydroxybenzimidazole
Purity: Above 98%
Impurities: Trace levels of organic byproducts possible, refer to batch certificate for details
Inhalation: Remove affected person to fresh air, get medical advice if symptoms continue
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses, seek medical attention
Ingestion: Rinse mouth, do not induce vomiting, get medical assistance promptly
Most Important Symptoms/Effects: Irritation, coughing, sore throat, burning sensation, possible allergic reactions
Suitable Extinguishing Media: Water spray, foam, dry chemical, or carbon dioxide
Unsuitable Extinguishing Media: Avoid high-pressure water streams
Specific Hazards: Emits toxic fumes of nitrogen oxides and carbon oxides on combustion
Protective Equipment: Firefighters wear self-contained breathing apparatus and full protective suit
Additional Information: Move containers from fire area if safe to do so, cool containers with flooding quantities of water
Personal Precautions: Avoid dust formation, provide adequate ventilation, use personal protective equipment
Environmental Precautions: Prevent further leakage or spillage, do not let product enter drains or watercourses
Methods for Containment and Cleaning Up: Collect spill by scooping up, place in appropriate container for disposal, clean area with water and detergent, dispose of waste using approved methods
Safe Handling: Use in well-ventilated areas, avoid inhaling dust, do not get in eyes or on skin, observe good hygiene practices
Storage Conditions: Keep in tightly closed container in a dry, cool, well-ventilated place, store away from incompatible substances such as oxidizers and strong acids
Incompatibilities: Avoid storage with strongly oxidizing materials, acids, or alkalis
Engineering Controls: Use local exhaust ventilation or process enclosure, provide eye wash stations and emergency showers
Personal Protective Equipment (PPE): Wear chemical safety goggles and face shield, use suitable gloves (nitrile rubber, neoprene), wear protective clothing, use approved respirator when exposure limits may be exceeded
Occupational Exposure Limits: No specific exposure limits established for 2-Hydroxybenzimidazole, maintain concentrations as low as possible
Hygiene Measures: Wash hands before breaks and after handling, remove contaminated clothing and wash before reuse
Appearance: White to off-white crystalline powder
Odor: Odorless or very faint aromatic odor
pH: Slightly acidic to neutral
Melting Point: 284–288 °C
Boiling Point: Decomposes before boiling
Solubility: Slightly soluble in water, soluble in organic solvents such as acetone and ethanol
Vapor Pressure: Not significant at room temperature
Partition Coefficient (log Kow): Data not available
Flash Point: Not applicable
Auto-Ignition Temperature: Data not available
Density: 1.36 g/cm³ (approximate)
Chemical Stability: Stable under recommended storage conditions
Possible Hazardous Reactions: Reacts with strong oxidizers, acids, and bases
Conditions to Avoid: Heat, flames, sparks, moisture
Hazardous Decomposition Products: Nitrogen oxides, carbon oxides
Polymerization: Will not occur under normal handling
Acute Toxicity: Data on oral, dermal, and inhalation toxicity for humans limited, animal studies show LD50 (oral, rat) > 2000 mg/kg
Skin Corrosion/Irritation: May cause skin irritation on direct contact
Serious Eye Damage/Irritation: Can cause eye irritation
Respiratory or Skin Sensitization: Possible allergenic potential
Germ Cell Mutagenicity: No clear evidence reported
Carcinogenicity: No recognized carcinogenicity according to IARC, NTP, or OSHA
Reproductive Toxicity: No specific concerns documented
Target Organ Effects: Exposure may cause irritation to mucous membranes, skin, eyes, and respiratory system
Ecotoxicity: Limited aquatic toxicity data available; likely low toxicity to aquatic organisms
Persistence and Degradability: Expected to be slowly biodegradable
Bioaccumulation: Low potential for bioaccumulation predicted based on structure
Mobility in Soil: Low to moderate mobility expected
Other Adverse Effects: Avoid release into the environment due to overall lack of detailed hazard data
Waste Treatment Methods: Dispose of contents/container in accordance with local, regional, national, and international regulations
Methods of Disposal: Incinerate in approved facility, do not discharge to sewer
Container Disposal: Rinse containers thoroughly, puncture and dispose of according to local requirements
UN Number: Not regulated as hazardous for transport
Proper Shipping Name: 2-Hydroxybenzimidazole (non-hazardous)
Transport Hazard Class: Not classified
Packing Group: Not assigned
Environmental Hazards: Not a marine pollutant
Special Precautions: Prevent accidental spillage, handle in secure containers to avoid dust release
Safety, Health and Environmental Regulations: Not listed as a hazardous substance under major international regulatory inventories (TSCA, EINECS, DSL, etc.)
Labeling Requirements: Follow workplace safety and chemical labeling requirements in your jurisdiction
Other Regulatory References: Consult country-specific requirements for handling chemicals for additional regulatory information
