Product Identification
【Product Name】7-Hydroxycoumarin
【Synonyms】Umbelliferone 7-羟基香豆素
【CAS】93-35-6
【Formula】C9H6O3
【Molecular Weight】162.15
【EINECS】202-240-3
【RTECS】GN6820000
【RTECS Class】Mutagen
【Merck】12,9981
【Beilstein/Gmelin】127683
【Beilstein Reference】5-18-01-00386

Physical and Chemical Properties
【Appearance】Slightly beige solid.
【Solubility in water】Slightly soluble
【Melting Point】204-206℃
【Boiling Point】382℃
【Vapor Pressure】2E-6 (25℃)
【pKa/pKb】9.16 (pKa)
【Partition Coefficient】.83
【Heat Of Vaporization】65.5 kJ/mol
【Usage】Substance is used in sunscreen lotions and creams.

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.
【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.
【Eyes】Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Handling and Storage
【Storage】Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
【Handling】Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.

Hazards Identification
【Ingestion】The toxicological properties of this substance have not been fully investigated.
【Inhalation】The toxicological properties of this substance have not been fully investigated. Inhalation of dust may cause respiratory tract irritation.
【Skin】No information regarding skin irritation and other potential effects was found.
【Eyes】No information regarding eye irritation and other potential effects was found.
【EC Risk Phrase】R 36/37/38
【EC Safety Phrase】S 26 36

Exposure Controls/Personal Protection
【Personal Protection】Eyes: Wear safety glasses and chemical ggles if splashing is possible. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
【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.

Fire Fighting Measures
【Flash Point】181℃
【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Extinguishing media: Use agent most appropriate to extinguish fire.

Accidental Release Measures
【Small spills/leaks】Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions.

Stability and Reactivity
【Disposal Code】3
【Stability】No data.
【Incompatibilities】Strong oxidizing agents, strong bases.
【Decomposition】Carbon monoxide, carbon dioxide.

Transport Information
【HS Code】2932 29 80