(E)-4-(3,4-二甲氧基苯基)-4-氧代-2-丁烯酸乙酯

用途

【用途一】
用作医药中间体

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名称

[ CAS 号 ]:
80937-23-1

[ 中文名 ]:
(E)-4-(3,4-二甲氧基苯基)-4-氧代-2-丁烯酸乙酯

[ 英文名 ]:
(E)Ethyl 4-(3,4-dimethoxyphenyl)-4-oxo-2-butenoate

[中文别名 ]:

[英文别名 ]:

(E)Ethyl4-(3,4-dimethoxyphenyl
3-(3,4-dimethoxybenzoyl)acrylic acid
(E)4-(3,4-dimethyoxyphenyl)-4-oxo-2-butenoate
4-(3,4-dimethoxyphenyl)-4-oxocrotonic acid
4-(3,4-dimethoxyphenyl)-4-oxo-2-butenoic acid
MFCD08458864
(E)-4-(3,4-Dimethoxyphenyl)-4-oxo-2-butenoic acid
Ethyl 4-(3,4-dimethoxyphenyl)-4-oxycrotonate
4-Oxo-4-(3.4-dimethoxy-phenyl)-trans-crotonsaeure
VAC

物理化学性质

[ 密度 ]:
1.138g/cm3

[ 沸点 ]:
393.2ºC at 760 mmHg

[ 熔点 ]:
87.0-91.0ºC

[ 分子式 ]:
C₁₄H₁₆O₅

[ 分子量 ]:
264.27400

[ 闪点 ]:
208.2ºC

[ 精确质量 ]:
264.10000

[ PSA ]:
61.83000

[ LogP ]:
2.00580

[ 折射率 ]:
1.515

毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: EM9140000

CHEMICAL NAME :: 2-Butenoic acid, 4-(3,4-dimethoxyphenyl)-4-oxo-, (E)-

CAS REGISTRY NUMBER :: 80937-23-1

BEILSTEIN REFERENCE NO. :: 3137849

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C12-H12-O5

MOLECULAR WEIGHT :: 236.24

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 500 mg/kg

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

REFERENCE :: FRXXBL French Demande Patent Document. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #2481118

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安全信息

[ 海关编码 ]:
2918990090

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海关

[ 海关编码 ]: 2918990090

[ 中文概述 ]:
2918990090. 其他含其他附加含氧基羧酸（包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物）. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%