Merck
CN

16505

Sigma-Aldrich

反式-4-溴-2-丁烯酸甲酯

technical, ≥90% (GC)

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别名:
4-溴代巴豆酸甲酯
线性分子式:
BrCH2CH=CHCOOCH3
CAS号:
分子量:
179.01
Beilstein:
1745755
MDL编号:
PubChem化学物质编号:

等级

technical

质量水平

检测方案

≥90% (GC)

包含

silver wool as stabilizer

杂质

~3% methyl cis-4-bromo-2-butenoate

折射率

n20/D 1.501

bp

70 °C/0.03 mmHg (lit.)

密度

1.498 g/mL at 20 °C (lit.)

储存温度

2-8°C

SMILES string

COC(=O)\C=C\CBr

InChI

1S/C5H7BrO2/c1-8-5(7)3-2-4-6/h2-3H,4H2,1H3/b3-2+

InChI key

RWIKCBHOVNDESJ-NSCUHMNNSA-N

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1 of 4

此商品
58730E3540089800
Ethyl 4-methylvalerate ≥97.0% (GC)

Sigma-Aldrich

58730

异己酸乙酯

Ethyl 2-methylacetoacetate 90%

Sigma-Aldrich

E35400

2-甲基乙酰乙酸乙酯

Methyl p-toluenesulfonate purum, ≥97.0% (GC)

Sigma-Aldrich

89800

对甲苯磺酸甲酯

refractive index

n20/D 1.501

refractive index

-

refractive index

n20/D 1.418 (lit.)

refractive index

n20/D 1.5172 (lit.)

bp

70 °C/0.03 mmHg (lit.)

bp

159-160 °C (lit.)

bp

187 °C (lit.)

bp

144-145 °C/5 mmHg (lit.)

density

1.498 g/mL at 20 °C (lit.)

density

0.868 g/mL at 20 °C (lit.)

density

1.019 g/mL at 25 °C (lit.)

density

1.234 g/mL at 25 °C (lit.)

storage temp.

2-8°C

storage temp.

-

storage temp.

-

storage temp.

2-8°C

grade

technical

grade

-

grade

-

grade

purum

应用

Methyl trans-4-bromo-2-butenoate (Methyl 4-bromocrotonate) was used in the synthesis of highly substituted benzoxepines or benzopyrans and L-α-amino [4,5-3H]adipic acid.

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Respiratory system

储存分类代码

10 - Combustible liquids

WGK

WGK 3

闪点(°F)

197.6 °F

闪点(°C)

92 °C

个人防护装备

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

法规信息

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甲醇

An Allylpalladium (IV) Intermediate in the Synthesis of Highly Substituted Benzoxepines and Benzopyrans via Reactions of Stable Pallada (II) cycles with Allyl Bromides.
Guo R, et al.
Organometallics, 26(15), 3784-3783 (2007)
J O'Sullivan et al.
The Biochemical journal, 184(2), 421-426 (1979-11-15)
1. delta-(L-alpha-Amino[4,5-3H]adipyl)-L-cysteinyl-D-[4,4-3H]valine has been synthesized from its constituent amino acids, the L-alpha-amino[4,5-3H]adipic acid being obtained by reduction with 3H2 of methyl 5-acetamido-5,5-diethoxycarbonylpent-2-enoate and subsequent decarboxylation and hydrolysis. 2. In a cell-free system prepared by lysis of protoplasts of Cephalosporium acremonium

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