Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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7-Hydroxycoumarin(93-35-6)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
7-Hydroxycoumarin
Synonyms
7-Hydroxy-2H-1-benzopyran-2-one
7-Hydroxy-2H-chromen-2-one
7-Hydroxycoumarin
7-Oxycoumarin
Skimmetine
Umbelliferone
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 C)
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 goggles 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
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