2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester

Modify Date: 2024-01-11 09:16:39

2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester Structure
2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester structure
Common Name 2-Oxo-2H-1-benzopyran-3-carboxylic acid methyl ester
CAS Number 21259-42-7 Molecular Weight 204.17900
Density 1.337g/cm3 Boiling Point 368.9ºC at 760 mmHg
Molecular Formula C11H8O4 Melting Point N/A
MSDS N/A Flash Point 192.9ºC

 Names

Name methyl 2-oxochromene-3-carboxylate
Synonym More Synonyms

 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

 Customs

HS Code 2932209090
Summary 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Synonyms

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