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2-乙酰基-5-甲基噻吩

2-乙酰基-5-甲基噻吩用途

2-Acetyl-5-methylthiophene is a constituent of coffee aroma.

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2-乙酰基-5-甲基噻吩名称

[ CAS 号 ]:
13679-74-8

[ 中文名 ]:
2-乙酰-5-甲基噻吩

[ 英文名 ]:
1-(5-Methyl-2-thienyl)ethanone

[中文别名 ]:

[英文别名 ]:

Thiophene, 2-acetyl-5-methyl-
1-(5-Methyl-2-thienyl)ethanone
1-(5-Methyl-2-thienyl)ethanone
2-Acetyl-5-methylthiophene
T5SJ BV1 E1
Ethanone, 1-(5-methyl-2-thienyl)-
1-(5-methylthien-2-yl)ethanone
Methyl 5-methyl-2-thienyl ketone
1-(5-Methyl-2-thienyl)ethan-1-one
1-(5-methylthiophen-2-yl)ethanone

2-乙酰基-5-甲基噻吩物理化学性质

[ 密度 ]:
1.1±0.1 g/cm3

[ 沸点 ]:
234.9±20.0 °C at 760 mmHg

[ 熔点 ]:
24-28 °C(lit.)

[ 分子式 ]:
C₇H₈OS

[ 分子量 ]:
140.203

[ 闪点 ]:
95.8±21.8 °C

[ 精确质量 ]:
140.029587

[ PSA ]:
45.31000

[ LogP ]:
1.71

[ 外观性状 ]:
白色至淡黄色晶体粉末

[ 蒸汽压 ]:
0.1±0.5 mmHg at 25°C

[ 折射率 ]:
1.536

[ 储存条件 ]:
0-10°C;存放于惰性气体之中;避免空气

2-乙酰基-5-甲基噻吩MSDS

详细MSDS(安全技术说明书)

2-乙酰基-5-甲基噻吩毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: OB4972000

CHEMICAL NAME :: Ketone, methyl 5-methyl-2-thienyl

CAS REGISTRY NUMBER :: 13679-74-8

BEILSTEIN REFERENCE NO. :: 0110854

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C7-H8-O-S

MOLECULAR WEIGHT :: 140.21

WISWESSER LINE NOTATION :: T5SJ B1 EV1

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 :: 230 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - other changes

REFERENCE :: APFRAD Annales Pharmaceutiques Francaises. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1943- Volume(issue)/page/year: 5,16,1947

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2-乙酰基-5-甲基噻吩安全信息

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危害码 (欧洲) ]:
Xn: Harmful;Xi: Irritant;

[ 风险声明 (欧洲) ]:
R20/21/22

[ 安全声明 (欧洲) ]:
S36/37-S22

[ 危险品运输编码 ]:
UN 3335 9

[ WGK德国 ]:
3

[ RTECS号 ]:
OB4972000

[ 海关编码 ]:
2934999090

2-乙酰基-5-甲基噻吩合成路线

详细合成路线

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2-乙酰基-5-甲基噻吩上游产品

2-乙酰基-5-甲基噻吩下游产品

2-乙酰基-5-甲基噻吩海关

[ 海关编码 ]: 2934999090

[ 中文概述 ]:
2934999090. 其他杂环化合物. 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:20.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

2-乙酰基-5-甲基噻吩文献

Acylation studies in the thiophene and furan series. IV. Strong inorganic oxyacids as catalysts. Hartough HD and Kosak AI.

J. Am. Chem. Soc. 69(12) , 3093-3096, (1947)

Palladium-catalysed direct 3-or 4-arylation of thiophene derivatives using aryl bromides. Dong JJ, et al.

Tetrahedron 50(23) , 2778-2781, (2009)

Efficient guaiazulene and chamazulene syntheses involving [6+4] cycloadditions. Mukherjee D, et al.

J. Am. Chem. Soc. 1010(1) , 251-252, (1979)

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