CAS 17642-18-1; methyl 2-bromo-2-butenoate (cis+trans)

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货号

品牌

产品名称

规格

包装、参考价格

M944257

MACKLIN

2-溴丁-2-烯酸甲酯

95%

268元/100mg; 453元/250mg; 1129元/1g; 3373元/5g;

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储存：室温

16503

Sigma-Aldrich

Methyl 2-bromo-2-butenoate

(cis+trans), ≥95.0% (GC)

1801.13元/5 ML;

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产品说明

一般描述

Methyl 2-bromo-2-butenoate(Methyl (Z)-2-bromocrotonate) yields (S)-2-bromobutanoic acid by baker′s yeast fermentation. It undergoes biotransformation catalyzed by old yellow enzyme to yield methyl (S)-2-bromobutanoate, a key intermediate for the synthesis of chiral drugs. It is a biannelating reagent which participates in double Michael-additions.

包装

5 mL in glass bottle

基本信息

线性分子式	CH₃CH=CBrCOOCH₃
分子量	179.01
Beilstein	1700999
EC 号	241-627-1
MDL编号	MFCD00042891
PubChem化学物质编号	57647571
NACRES	NA.22

产品性质

测定	≥95.0% (GC)
折射率	n20/D 1.486
bp	178-182 ℃ (lit.)
密度	1.505 g/mL at 20 ℃ (lit.)
储存温度	2-8℃
SMILES string	COC(=O)C(Br)=CC
InChI	1S/C5H7BrO2/c1-3-4(6)5(7)8-2/h3H,1-2H3
InChI key	DMKWWKUPZZAUQL-UHFFFAOYSA-N

安全信息

象形图
警示用语：	Warning
危险声明	H315 - H319 - H335
预防措施声明	P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
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)	145.4 °F - closed cup
闪点(C)	63 ℃ - closed cup
个人防护装备	Eyeshields, Gloves, type ABEK (EN14387) respirator filter

305305

Fluorochem

(Z)-METHYL 2-BROMOBUT-2-ENOATE

95%

3300元/1g; 9878元/5g;

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基本信息

CAS Number	17642-18-1
MDL Number	MFCD00042891

安全信息

图形或危害标志
危险性说明	H302: Harmful if swallowed. H315: Causes skin irritation. H319: Causes serious eye irritation. H332: Harmful if inhaled. H335: May cause respiratory irritation.
防范说明	P233: Keep container tightly closed. P260: Do not breathe . P261: Avoid breathing . P264: Wash hands thoroughly after handling. P270: Do not eat, drink or smoke when using this product. P271: Use only outdoors or in a well-ventilated area. P280: Wear . P301 + P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. P304: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.. P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P312: Call a POISON CENTER or doctor/physician if you feel unwell. P321: Specific treatment (see relevant procedures. on this label). P330: Rinse mouth. P332 + P313: If skin irritation occurs: Get medical advice/ attention. P337 + P313: If eye irritation persists: Get medical advice/attention. P340: Remove victim to fresh air and keep at rest in a position comfortable for breathing. P362: Take off contaminated clothing and wash before reuse. P403: Store in a well-ventilated place. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. P405: Store locked up. P501: Dispose of contents/container to in accordance with local regulation .