Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Methyl 4-bromocrotonate
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Purity: 98.0%
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Henan Tianfu Chemical Co., Ltd.
China
Product Name: Methyl 4-bromocrotonate
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
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Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: Methyl bromocrotonate
Price: ￥Inquiry/25kg
Purity: 70.0%
Stocking Period: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

1117-71-1

1117-71-1 structure

1117-71-1 structure

Name: Methyl bromocrotonate
Chemical Name: Methyl 4-bromocrotonate
CAS Number: 1117-71-1
Molecular Formula: C₅H₇BrO₂
Molecular Weight: 179.012
Catalog: Chemical reagent Organic reagent Halogenated aliphatic hydrocarbon
Create Date: 2018-05-24 08:00:00
Modify Date: 2026-07-01 12:19:16

Name	Methyl 4-bromocrotonate
Synonyms	Methyl (2E)-4-bromo-2-butenoate METHYL 4-BROMOCROTONATE MEHTYL 4-BROMOCROTONATE Bromo Methyl Crotonate 4-bromo-crotonicacimethylester Crotonic acid, 4-bromo-, methyl ester 4-Bromo-2-butenoic acid methyl (E)-methyl-4-bromobut-2-enoate 4-bromocrotonate Methyl 4-broMocrotonate, ., R (E)-Methyl 4-broMobut-2-enoate methyl (E)-4-bromo-2-butenoate 4-Bromocrotonic Acid Methyl Ester trans-4-Bromo-2-butenoic Acid Methyl Ester methyl4-bromo-2-butenoate methylbromocrotonate 4-bromo-2-butenoicacimethylester (E)-4-Bromo-but-2-enoic acid methyl ester methyl (2E)-4-bromobut-2-enoate 4-BROMOCROTONIC ACID METHYL ESTER Methyl-4-bromocrotonate, (min. trans) Methyl Trans-4-Bromocrotonate Methyl 4-bromocrotonate, ade TRANS-4-BROMO-2-BUTENOIC ACID METHYL ESTER Methyl 4-bromobut-2-enoate Remazolam impurity 2 trans-4-Bromo-2-butenoic Acid Methyl Ester 4-Bromocrotonic Acid Methyl Ester Methyl trans-4-Bromo-2-butenoate TRANS-METHYL-4-BROMOCROTONATE Methyl trans-4-bromocrotonate methyl 4-bromo-crotonate Methyl trans-4-bromo-2-butenoate EINECS 214-251-0 Methyl-4-bromocrotonate(min.trans) MFCD00000246 methyl 4-bromocrotonate (4-bromocrotonic acid methyl ester) Methyl gamma-bromocrotonate Methyl 4-bromocrotote 2-Butenoic acid, 4-bromo-, methyl ester Methyl-4-bromcrotonat (E)-4-bromo-2-butenoic acid methyl ester Methyl4-Bromocrotonate> 4-Bromo-2-butenoic acid methyl ester Methyl 4-broMocrotonate , ade METHYL TRANS-4-BROMO-2-BUTENOATE Remimazolam Impurity 2 Methyl 4-bromo-2-butenoate Methyl (E)-4-bromobut-2-enoate Methyl γ-bromocrotonate

Density	1.5±0.1 g/cm3
Boiling Point	198.5±0.0 °C at 760 mmHg
Molecular Formula	C₅H₇BrO₂
Molecular Weight	179.012
Flash Point	67.4±22.6 °C
Exact Mass	177.962936
PSA	26.30000
LogP	1.63
Vapour Pressure	0.4±0.3 mmHg at 25°C
Index of Refraction	1.485
Storage condition	2-8°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GQ3120000

CHEMICAL NAME :: Crotonic acid, 4-bromo-, methyl ester

CAS REGISTRY NUMBER :: 1117-71-1

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C5-H7-Br-O2

MOLECULAR WEIGHT :: 179.03

WISWESSER LINE NOTATION :: E2U1VO1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 56 mg/kg

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

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#00811

Symbol	GHS05, GHS07
Signal Word	Danger
Hazard Statements	H315-H318-H335
Precautionary Statements	P261-P280-P305 + P351 + P338
Personal Protective Equipment	Eyeshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	C:Corrosive;
Risk Phrases	R20/21/22;R34
Safety Phrases	S26-S39-S45-S36/37/39
RIDADR	3265
WGK Germany	3
RTECS	GQ3120000
Packaging Group	III
Hazard Class	8
HS Code	2916190090

Precursor 9
623-43-8 3724-65-0 100038-62-8 5837-73-0
56-23-5 67-56-1 13991-36-1 3699-18-1
71-43-2
DownStream 9
111042-30-9 623-43-8 3724-55-8 143140-68-5
4493-42-9 4619-18-5 183742-32-7 22991-05-5
25157-66-8

HS Code	2916190090
Summary	2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

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