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2,3-Dichloro-2-butene is an organic compound with the chemical formula C4H6Cl2. It is a colorless liquid with a pungent odor and is used as an intermediate in the production of various chemicals, including pesticides and pharmaceuticals. The molecule consists of a butene backbone with two chlorine atoms attached to the second and third carbon atoms. Due to its reactivity, it is typically handled with care and stored under controlled conditions to prevent exposure and potential health risks.

4279-21-4

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4279-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4279-21-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,7 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4279-21:
(6*4)+(5*2)+(4*7)+(3*9)+(2*2)+(1*1)=94
94 % 10 = 4
So 4279-21-4 is a valid CAS Registry Number.
InChI:InChI=1/C4H6Cl2/c1-3(5)4(2)6/h1-2H3

4279-21-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,3-dichloro-2-butene

1.2 Other means of identification

Product number -
Other names 2,3-Dichlor-buten-(2)

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4279-21-4 SDS

4279-21-4Relevant academic research and scientific papers

INVESTIGATION IN THE FIELD OF UNSATURATED COMPOUNDS VI. LIQUID-PHASE CHLORINATION OF 2-HALOGENO-2-BUTENES

Mkryan, G. G.,Kaplanyan, E. E.,Mkryan, G. M.

, p. 1833 - 1836 (2007/10/02)

The liquid-phase chlorination of 2-halogeno-2-butenes in the presence of tert-butylpyrocatechol leads to the formation of the products from an anomalous reaction (2,3-dihalogeno-1-butenes), substitution of hydrogen at the double bond (2,3-dihalogeno-2-butenes), and normal addition (2,2,3-trihalogenobutanes).The ratios of these compounds are 70:6:24 in the case of 2-chloro-2-butene and 54:7.5:38.5 in the case of 2-bromo-2-butene.During the chlorination of 2-chloro-2-butene in the presence of sodium bicarbonate the formation of 3-chloro-2-butanol (20percent) was observed as a result of the combined addition of chlorine and water.

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