Product Identification
【Product Name】2-Hydroxy-4-methoxybenzophenone
【Synonyms】Oxybenzone 羟苯甲酮
【CAS】131-57-7
【Formula】C14H12O3
【Molecular Weight】228.25
【EINECS】205-031-5
【RTECS】DJ1575000
【RTECS Class】Tumorigen; Mutagen; Reproductive Effector
【Merck】12,7088
【Beilstein/Gmelin】1913145
【Beilstein Reference】4-08-00-02442

Physical and Chemical Properties
【Appearance】White to off-white or light yellow powder.
【Solubility in water】Insoluble
【Melting Point】65℃
【Boiling Point】370℃
【Vapor Pressure】5E-6 (25℃)
【Density】1.3397 g/cm3 (25℃)
【pKa/pKb】7.56 (pKa)
【Partition Coefficient】3.82
【Heat Of Vaporization】64.1 kJ/mol
【Usage】Sunscreen agent.

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 immediately.
【Inhalation】Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid if cough or other symptoms appear.
【Skin】Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
【Eyes】Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. If irritation develops, get medical aid.

Handling and Storage
【Storage】Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification
【Ingestion】Ingestion of large amounts may cause gastrointestinal irritation. May cause nausea and vomiting.
【Inhalation】May cause respiratory tract irritation.
【Skin】May cause skin irritation.
【Eyes】May cause eye irritation.
【EC Risk Phrase】R 36/37/38
【EC Safety Phrase】S 26 36
【UN (DOT)】1325

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】Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
【Poison Class】-

Fire Fighting Measures
【Flash Point】140℃
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Extinguishing media: Use agent most appropriate to extinguish fire. In case of fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
【Fire Potential】This material is probably combustible.

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. Avoid generating dusty conditions. Provide ventilation.

Stability and Reactivity
【Incompatibilities】Oxidizing agents, bases, acid chlorides, acid anhydrides.
【Stability】Stable under normal temperatures and pressures.
【Decomposition】Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.
【Combustion Products】Fire may produce irritating and/or toxic gases.

Transport Information
【UN Number】1325
【Hazard Class】4.1
【Packing Group】II; III
【HS Code】2914 50 00