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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6,7-Dihydroxycoumarin(305-01-1)

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
6,7-Dihydroxycoumarin
Synonyms
6,7-Dihydroxy-2H-1-benzopyran-2-one
6,7-Dihydroxycoumarin
Aesculetin
Cichorigenin
Cichoriin aglycon
Esculetol
CAS
305-01-1
Formula
C9H6O4
Molecular Weight
178.14
EINECS
206-161-5
RTECS
GN6382500
RTECS Class
Drug; Natural Product
Merck
13,3731
Beilstein/Gmelin
152788
Beilstein Reference
5-18-03-00202

Physical and Chemical Properties

Appearance
Yellow crystalline powder.
Solubility in water
Soluble
Melting Point
267
Boiling Point
470
Vapor Pressure
2E-9 (25 C)
pKa/pKb
8.63 (pKa)
Partition Coefficient
.55
Heat Of Vaporization
76.0 kJ/mol
Usage
Substance is used in filters for absorption of ultraviolet light.

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. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
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 cool, dry place. Store in a tightly closed container.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.

Hazards Identification

Ingestion
The toxicological properties of this substance have not been fully investigated.
Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. The toxicological properties of this substance have not been fully investigated.
Skin
No information regarding skin irritation and other potential effects was found.
Eyes
No information regarding eye irritation and other potential effects was found.
Hazards
Contact with metals may evolve flammable hydrogen gas.
EC Risk Phrase
R 36/37/38
EC Safety Phrase
S 26 36
UN (DOT)
1759

Exposure Controls/Personal Protection

Personal Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles 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.

Fire Fighting Measures

Flash Point
201
Fire Fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire use water spray, dry chemical, carbon dioxide, or appropriate foam.
Fire Potential
Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.

Accidental Release Measures

Small spills/leaks
Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal.

Stability and Reactivity

Incompatibilities
Oxidizing agents.
Stability
Stable under normal temperatures and pressures.
Decomposition
Hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide.
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
1759
Hazard Class
8
Packing Group
I; II; III
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