Product Identification
【Product Name】1-(2-Pyridylazo)-2-naphthol
【Synonyms】1-(2-吡啶偶氮)-2-萘酚
【CAS】85-85-8
【Formula】C15H11N3O
【Molecular Weight】249.27
【EINECS】201-637-9
【Beilstein/Gmelin】206390
【Beilstein Reference】5-22-14-00618

Physical and Chemical Properties
【Appearance】Red to brown solid.
【Solubility in water】Insoluble
【Melting Point】137 - 140
【Boiling Point】412
【Partition Coefficient】4.46

First Aid Measures
【Ingestion】If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
【Inhalation】Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】Get medical aid if irritation develops or persists. Flush skin with plenty of soap and water.
【Eyes】Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Handling and Storage
【Storage】Store in a cool, dry place. Keep containers tightly closed.
【Handling】Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation.

Hazards Identification
【Ingestion】May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Low hazard for usual industrial handling.
【Inhalation】May cause respiratory tract irritation. Low hazard for usual industrial handling.
【Skin】May cause skin irritation.
【Eyes】May cause eye irritation.
【EC Risk Phrase】R 36/37/38
【EC Safety Phrase】S 26 36

Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear appropriate protective eyeglasses or chemical safety ggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
【Respirators】A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

Fire Fighting Measures
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use alcohol foam, carbon dioxide, or water spray when fighting fires involving this material. In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam.

Accidental Release Measures
【Small spills/leaks】Clean up spills immediately, using the appropriate protective equipment. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.

Stability and Reactivity
【Disposal Code】3
【Stability】Stable under normal temperatures and pressures.
【Incompatibilities】Strong oxidizing agents.
【Decomposition】Carbon monoxide, carbon dioxide, nitric oxide (NOx) and ammonia (NH3) fumes.

Transport Information
【HS Code】2933 39 99