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(E)-1-Chlorobut-2-ene

CAS No.
4894-61-5
Chemical Name:
(E)-1-Chlorobut-2-ene
Synonyms
E-chloro;Einecs 225-516-5;(E)CROTYL CHLORIDE;1-CHLORO-2-BUTYLENE;(E)-2-Butenylchloride;(E)-1-Chloro-2-butene;2-BUTEN-1-YL CHLORIDE;TRANS-CROTYL CHLORIDE;(E)-1-Chlorobut-2-ene;2-butene,1-chloro-,(E)
CBNumber:
CB3304576
Molecular Formula:
C4H7Cl
Molecular Weight:
90.55
MDL Number:
MFCD00000987
MOL File:
4894-61-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 01:43:18

(E)-1-Chlorobut-2-ene Properties

Melting point -65 °C
Boiling point 85-86 °C(lit.)
Density 0.923 g/mL at 20 °C(lit.)
refractive index n20/D 1.430
Flash point -15 °C
storage temp. 2-8°C
form Liquid
color Clear colorless
Henry's Law Constant 3.1×10-3 mol/(m3Pa) at 25℃, Bakierowska and Trzeszczy\'nski (2003)
InChI InChI=1S/C4H7Cl/c1-2-3-4-5/h2-3H,4H2,1H3/b3-2+
InChIKey YTKRILODNOEEPX-NSCUHMNNSA-N
SMILES C(Cl)/C=C/C
CAS DataBase Reference 4894-61-5(CAS DataBase Reference)
FDA UNII XX3QN28JUX
EPA Substance Registry System 2-Butene, 1-chloro-, (2E)- (4894-61-5)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Corrosion (GHS05)Exclamation Mark (GHS07)
GHS02,GHS05,GHS07
Signal word  Danger
Hazard statements  H225-H314-H335
Precautionary statements  P210-P233-P240-P280-P303+P361+P353-P305+P351+P338
target organs Respiratory system
Hazard Codes  F,C
Risk Statements  11-22-34-36/37
Safety Statements  16-26-36/37/39-45-25-27
RIDADR  UN 2924 3/PG 2
WGK Germany  2
RTECS  EM4264000
F  19
TSCA  TSCA listed
HazardClass  3.1
PackingGroup  II
HS Code  2903290000
Storage Class 3 - Flammable liquids
Hazard Classifications Eye Dam. 1
Flam. Liq. 2
Skin Corr. 1B
STOT SE 3
NFPA 704
3
2

(E)-1-Chlorobut-2-ene price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 254584 Crotyl chloride, predominantly trans 95% 4894-61-5 25g $199 2026-04-30 Buy
Sigma-Aldrich 254584 Crotyl chloride, predominantly trans 95% 4894-61-5 100g $686 2026-04-30 Buy
Biosynth FC167277 Crotyl chloride - mixture of cis- and trans-isomers 4894-61-5 1kg $5500 2026-06-04 Buy
Biosynth FC167277 Crotyl chloride - mixture of cis- and trans-isomers 4894-61-5 2kg $8525 2026-06-04 Buy
Biosynth FC167277 Crotyl chloride - mixture of cis- and trans-isomers 4894-61-5 5kg $15812.5 2026-06-04 Buy
Product number Packaging Price Buy
254584 25g $199 Buy
254584 100g $686 Buy
FC167277 1kg $5500 Buy
FC167277 2kg $8525 Buy
FC167277 5kg $15812.5 Buy

(E)-1-Chlorobut-2-ene Chemical Properties, Uses, Production

Uses

Crotyl Chloride is a useful intermediate used in the preparation of crotyltrichlorosilanes and in other crotylsilylation related reactions

Uses

Crotyl chloride was used in kinetics measurements of reactions of atomic chlorine with series of unsaturated aldehydes and ketones at 298K. (E)Crotyl chloride was also used in the preparation of (E)-crotyltrichlorosilane.

General Description

Crotyl chloride reacts with trichlorosilane in the presence of tertiary amine and copper salt to give the corresponding allyltrichlorosilane.

(E)-1-Chlorobut-2-ene Preparation Products And Raw materials

Raw materials

Preparation Products

(E)-1-Chlorobut-2-ene Suppliers

Global Suppliers ( 82)
Supplier Tel Email Country ProdList Advantage
SHAANXI DIDEU MEDICHEM CO.LTD 029-029-81123119 17391733320 1021@dideu.com China 9550 58
Shanghai Boyle Chemical Co., Ltd. 021-50182298 021-50180596 sales@boylechem.com China 2202 55
3B Pharmachem (Wuhan) International Co.,Ltd. 18930552037 3bsc@sina.com China 15813 69
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 45000 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Spectrum Chemical Manufacturing Corp. 021-021-021-67601398-809-809-809 15221380277 marketing_china@spectrumchemical.com China 9643 60
Shanghai Macklin Biochemical Co.,Ltd. 15221275939 15221275939 shenlinxing@macklin.cn China 15775 55
Sigma-Aldrich 021-61415566 800-8193336 orderCN@merckgroup.com China 51389 80
Shanghai Qiao Chemical Science Co., Ltd 021-58892003 info@qiaochem.com China 6065 65
Wuhan EEChem Technologies Co., Ltd 0711-3617768 13308685235 lihongcai4360@sina.com China 1542 55

View Latest Price from (E)-1-Chlorobut-2-ene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
(E)-1-Chlorobut-2-ene pictures 2026-06-30 (E)-1-Chlorobut-2-ene
4894-61-5
1KG 98.0% 10000KGS Shaanxi Dideu New Materials Co. Ltd
(E)-1-Chlorobut-2-ene pictures 2026-05-22 (E)-1-Chlorobut-2-ene
4894-61-5
$1.50 1g 99.0% Min 100 Tons Shaanxi Didu New Materials Co. Ltd
TRANS-CROTYL CHLORIDE TRANS-1-CHLORO-2-BUTENE (E)CROTYL CHLORIDE CIS,TRANS-CROTYL CHLORIDE CIS,TRANS-1-CHLORO-2-BUTENE GAMMA-METHYLALLYL CHLORIDE 2-BUTEN-1-YL CHLORIDE 1-CHLORO-2-BUTYLENE Crotyl chloride, predoMinantly trans 95% (E)-1-Chloro-2-butene (E)-2-Butenylchloride 2-Butene,1-chloro-,(2E)- 2-butene,1-chloro-,(E) 2-Butene,1-chloro-,(E)- trans-1-chloro-but-2-ene trans-4-Chloro-2-butene trans-But-2-enylchloride trans-γ-Methallylchloride Einecs 225-516-5 #ntrans-1-Chloro-2-butene CROTYL CHLORIDE, 95%, PREDOMINANTLY TRAN S Crotyl Chloride (Trans) crotyl chloride, predominantly trans (E)-1-Chlorobut-2-ene (E)-1-Chlorobut-2-ene ISO 9001:2015 REACH Crotyl chloride, predominantly trans< Crotyl chloride, predominantly trans E-chloro 4894-61-5 625-61-5 Organic Building Blocks Building Blocks Alkenes Acyclic Acyclic Alkenes Building Blocks Chemical Synthesis Organic Building Blocks