2H-1-Benzopyran-2-one,7-methyl- cas no:2445-83-2

Name2H-1-Benzopyran-2-one,7-methyl-
CAS2445-83-2
SynonymsCoumarin,7-methyl- (6CI,7CI,8CI); 7-Methyl-2H-1-benzopyran-2-one;7-Methyl-2H-chromen-2-one; 7-Methylchromen-2-one; 7-Methylcoumarin; NSC 19511
EINECS(EC#)219-499-3
Molecular FormulaC10H8 O2
Molecular Weight160.18

refractive index1.583

Risk 23/24/25
Safety

Poison by subcutaneous route. Moderately toxic by ingestion. A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
Risk Statements：23/24/25 
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed.
Safety Statements 1-13-45 
S1 :Keep locked up. 
S13:Keep away from food, drink and animal foodstuffs. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
WGK Germany 2
RTECS GN7792100

1.		skn-rbt 500 mg/24H MLD		FCTOD7    Food and Chemical Toxicology. 20 (Suppl)(1982),747.
2.		orl-rat LD50:3800 mg/kg		FCTOD7    Food and Chemical Toxicology. 20 (Suppl)(1982),747.
3.		scu-mus LD50:258 mg/kg		YKKZAJ    Yakugaku Zasshi. Journal of Pharmacy. 76 (1956),168.