© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Product Name: 1,1'-Bi-2-Naphthol
Chemical Formula: C20H14O2
Chemical Family: Organic compounds, Binaphthols
Synonyms: BINOL, 2,2'-Dihydroxy-1,1'-binaphthyl
CAS Number: 602-09-5
Recommended Uses: Chiral ligand in asymmetric catalysis, pharmaceutical intermediate, chemical research
Supplier: Chemical manufacturers or research chemical suppliers, address, contact number, emergency phone line as provided by supplier
GHS Classification: Not classified as hazardous under GHS criteria
Pictogram: None required based on available data
Signal Word: None
Hazard Statements: May cause mild skin irritation, eye irritation possible on direct contact
Precautionary Statements: Avoid contact with eyes, skin and clothing. Wash hands thoroughly after handling. Use proper personal protective equipment.
Chemical Name: 1,1'-Bi-2-Naphthol
CAS Number: 602-09-5
Concentration: >99% (pure compound)
Impurities: Trace naphthol derivatives (typically <1%)
Inhalation: Move to fresh air, keep individual at rest, seek medical attention if symptoms persist
Skin Contact: Wash skin thoroughly with soap and water, remove contaminated clothing, seek medical advice if irritation develops
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, lift eyelids, obtain medical attention
Ingestion: Rinse mouth, give water to drink, do not induce vomiting, get medical help if feeling unwell
Symptoms: Redness, irritation, discomfort
Suitable Extinguishing Media: Water spray, foam, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: Direct water jet can spread powder
Specific Hazards: Thermally decomposes to carbon monoxide, carbon dioxide, toxic fumes
Protective Equipment: Firefighters wear self-contained breathing apparatus and full protective gear
Firefighting Instructions: Remove containers from danger zone if safe, cool exposed containers with water mist
Personal Precautions: Avoid dust formation, avoid breathing dust, wear appropriate protective gear
Environmental Precautions: Prevent spillage from entering drains, water course, or soil
Methods for Cleanup: Scoop or sweep up without raising dust, place in suitable and labeled waste containers, ventilate area, wash spill site after material pickup
Disposal: Comply with local chemical disposal guidelines
Handling: Apply local exhaust ventilation in areas where dust may be generated, avoid contact with eyes and skin, wash hands after use, do not eat or drink in area of use
Storage: Keep in a tightly closed container, store in a cool, dry, well-ventilated place, keep away from incompatible substances like strong oxidizers, avoid exposure to moisture and direct sunlight, label containers clearly
Exposure Limits: No specific occupational exposure limits set for this compound
Engineering Controls: Use laboratory fume hood or effective local exhaust ventilation
Personal Protective Equipment: Safety goggles, compatible gloves (nitrile or latex recommended), lab coat, P2 dust mask if risk of airborne dust exists
Hygiene Measures: Remove contaminated clothing, wash hands and arms thoroughly before eating, drinking or leaving laboratory space
Appearance: White to pale yellow crystalline powder
Odor: Odorless
Odor Threshold: Not determined
pH: Not applicable (insoluble in water)
Melting Point/Freezing Point: About 210-215 °C
Boiling Point and Range: Not available; compound decomposes before boiling
Flash Point: Not determined
Evaporation Rate: Non-volatile
Flammability: Not easily flammable; dust may pose ignition risk
Vapor Pressure: Negligible
Solubility: Insoluble in water, soluble in organic solvents including ethanol, ether, benzene
Auto-Ignition Temperature: Not determined
Density: Around 1.24 g/cm³
Chemical Stability: Stable under normal temperatures and handling conditions
Reactivity: No hazardous reactions expected under normal use
Conditions to Avoid: Excess moisture, high temperatures, direct sunlight
Incompatible Materials: Strong oxidizing agents can trigger decomposition
Hazardous Decomposition Products: Carbon dioxide, carbon monoxide, smoke, other toxic organic fumes
Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: No reliable LD50 data available; low acute toxicity based on structure and animal testing
Skin Irritation: Mild irritation possible
Eye Irritation: Mild irritation possible
Respiratory Effects: Dust may cause irritation of the respiratory tract
Sensitization: No evidence of sensitization reported
Chronic Effects: No long-term effects documented; avoid repeated or prolonged exposure
Carcinogenicity: Not listed as carcinogen by major agencies (IARC, NTP, OSHA, ACGIH)
Ecotoxicity: Limited data; not expected to bioaccumulate or persist in aquatic environments
Persistence and Degradability: Compound likely degrades slowly by natural processes in environment
Mobility in Soil: Not mobile due to low water solubility
Bioaccumulative Potential: Low potential estimated from poor water solubility and molecular weight
Aquatic Toxicity: No measured data, treat as potentially hazardous to aquatic organisms out of caution
Waste Treatment Methods: Collect contaminated material and waste for incineration or landfilling in compliance with local, state, and national regulations
Container Disposal: Rinse empty containers, render unusable before disposal, comply with chemical waste rules
Precautions: Do not allow product or waste to reach drains, surface, or ground water
UN Number: Not regulated as a hazardous material for transport
Transport Hazard Class: Non-hazardous
Packing Group: Not applicable
Labeling Requirements: No specific hazard labeling required
Additional Information: Use caution to avoid package breakage or spillage during shipping
TSCA (USA): Listed
REACH (EU): Subject to registration if manufactured/imported in large amounts for commercial applications
DSL (Canada): Listed
OSHA: Not specifically regulated
SARA Title III: Not listed as a hazardous substance
California Proposition 65: Not listed
Other National Inventories: Generally included, but users should check relevant local regulations prior to use for research, manufacturing, possession, or disposal
