2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester
Names
[ CAS No. ]:
21259-42-7
[ Name ]:
2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester
[Synonym ]:
2-Oxo-2H-chromene-3-carboxylic acid methyl ester
Methyl 2-oxo-2H-chromene-3-carboxylate
methyl 2-oxochromen-3-carboxylate
F0110-0035
2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester
2-oxochromene-3-carboxylic acid methyl ester
2H-1-BENZOPYRAN-3-CARBOXYLIC ACID,2-OXO-,METHYL ESTER
methyl coumarin-3-carboxylate
Chemical & Physical Properties
[ Density]:
1.337g/cm3
[ Boiling Point ]:
368.9ºC at 760 mmHg
[ Molecular Formula ]:
C11H8O4
[ Molecular Weight ]:
204.17900
[ Flash Point ]:
192.9ºC
[ Exact Mass ]:
204.04200
[ PSA ]:
56.51000
[ LogP ]:
1.57960
[ Vapour Pressure ]:
1.23E-05mmHg at 25°C
[ Index of Refraction ]:
1.578
Toxicological Information
CHEMICAL IDENTIFICATION
- RTECS NUMBER :
- DJ2502400
- CHEMICAL NAME :
- 2H-1-Benzopyran-3-carboxylic acid, 2-oxo-, methyl ester
- CAS REGISTRY NUMBER :
- 21259-42-7
- BEILSTEIN REFERENCE NO. :
- 0176130
- LAST UPDATED :
- 199612
- DATA ITEMS CITED :
- 1
- MOLECULAR FORMULA :
- C11-H8-O4
- MOLECULAR WEIGHT :
- 204.19
HEALTH HAZARD DATA
ACUTE TOXICITY DATA
- TYPE OF TEST :
- LD50 - Lethal dose, 50 percent kill
- ROUTE OF EXPOSURE :
- Subcutaneous
- SPECIES OBSERVED :
- Rodent - mouse
- DOSE/DURATION :
- 72 mg/kg
- TOXIC EFFECTS :
- Details of toxic effects not reported other than lethal dose value
- REFERENCE :
- YKKZAJ Yakugaku Zasshi. Journal of Pharmacy. (Nippon Yakugakkai, 2-12-15 Shibuya, Shibuya-ku, Tokyo 150, Japan) No.1- 1881- Volume(issue)/page/year: 75,1486,1955
Safety Information
[ HS Code ]:
2932209090
Synthetic Route
Precursor & DownStream
Precursor
DownStream
Customs
[ HS Code ]: 2932209090
[ Summary ]:
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%