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Check Digit Verification of cas no

The CAS Registry Mumber 65968-52-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,9,6 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 65968-52:
(7*6)+(6*5)+(5*9)+(4*6)+(3*8)+(2*5)+(1*2)=177
177 % 10 = 7
So 65968-52-7 is a valid CAS Registry Number.

65968-52-7SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 14, 2017

Revision Date: Aug 14, 2017

1.Identification

1.1 GHS Product identifier

Product name	trans-1,2,3,4-tetrachloro-2-butene

1.2 Other means of identification

Product number	-
Other names	1,2,3,4-tetrachloro-2-butene

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:65968-52-7 SDS

65968-52-7Upstream product

65968-52-7Downstream Products

65968-52-7Relevant articles and documents

INVESTIGATION IN THE REGION OF UNSATURATED COMPOUNDS. XIV. PRODUCTS FROM LOW-TEMPERATURE CHLORINATION OF 1,2,3-TRICHLORO-2-BUTENE IN THE PRESENCE OF FERRIC CHLORIDE AND TERT-BUTYLPYROCATECHOL

Kaplanyan, E. E.,Mkrtchyan, A. M.,Mkryan, G. M.

, p. 866 - 868 (2007/10/02)

1,2,2,3,3-Pentachlorobutane and 2,3,3,4-tetrachloro-1-butene are formed during the low-temperature (-20 to 25 deg C) chlorination of cis- and trans-1,2,3-trichloro-2-butenes in the presence of anhydrous ferric chloride and tert-butylpyrocatechol.Chlorination is accompanied by isomerization of the 2,3,3,4-tetrachloro-1-butene to 1,2,3,4-tetrachloro-2-butene and also by the addition of chlorine to the tetrachlorobutenes with the formation of 1,2,2,3,3,4-hexachlorobutane.

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65968-52-7