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2H-色烯

2H-色烯名称

[ CAS 号 ]:
254-04-6

[ 中文名 ]:
2H-色烯

[ 英文名 ]:
2H-chromene

[英文别名 ]:

Benzopyran
2H-Chromene
1,2-Benzopyran
3-Chromene
chromene
1,2-Chromene
1-benzopyran
2H-1-BENZOPYRAN

2H-色烯物理化学性质

[ 密度 ]:
1.095g/cm3

[ 沸点 ]:
220.2ºC at 760mmHg

[ 分子式 ]:
C₉H₈O

[ 分子量 ]:
132.15900

[ 闪点 ]:
79.7ºC

[ 精确质量 ]:
132.05800

[ PSA ]:
9.23000

[ LogP ]:
2.09220

[ 蒸汽压 ]:
0.169mmHg at 25°C

[ 折射率 ]:
1.571

2H-色烯毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DJ2105000

CHEMICAL NAME :: 2H-1-Benzopyran

CAS REGISTRY NUMBER :: 254-04-6

BEILSTEIN REFERENCE NO. :: 0109871

LAST UPDATED :: 199803

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C9-H8-O

MOLECULAR WEIGHT :: 132.17

WISWESSER LINE NOTATION :: T66 BO CHJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 250 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: EJMCA5 European Journal of Medicinal Chemistry--Chimie Therapeutique. (Editions Scientifiques Elsevier, 29 rue Buffon, F-75005, Paris, France) V.9- 1974- Volume(issue)/page/year: 11,81,1976

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2H-色烯安全信息

[ 海关编码 ]:
2901299090

2H-色烯合成路线

详细合成路线

2H-色烯海关

[ 海关编码 ]: 2901299090

[ 中文概述 ]:
2901299090 其他不饱和无环烃。监管条件:无。增值税率:17.0%。退税率:9.0%。最惠国关税:2.0%。普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途, 用作气体燃料的应报明包装容器容积, 散装货物应报明

[ Summary ]:
2901299090 unsaturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%