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83489-74-1

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83489-74-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83489-74-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,4,8 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 83489-74:
(7*8)+(6*3)+(5*4)+(4*8)+(3*9)+(2*7)+(1*4)=171
171 % 10 = 1
So 83489-74-1 is a valid CAS Registry Number.

83489-74-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 1,5,1',5'-tetracyclohexyl-[3,3']bicyclohexa-1,4-dienylidene-6,6'-dione

1.2 Other means of identification

Product number -
Other names 1,5,1',5'-Tetracyclohexyl-[3,3']bicyclohexa-1,4-dienyliden-6,6'-dion

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:83489-74-1 SDS

83489-74-1Upstream product

83489-74-1Relevant articles and documents

Synthesis method of 3,3',5,5'-tetraalkyl-4,4'-diphenoquinone

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Paragraph 0084; 0085; 0086, (2017/08/29)

The invention provides a synthesis method of 3,3',5,5'-tetraalkyl-4,4'-diphenoquinone. 2,6-dialkyl phenol is dissolved in a reaction solvent; a copper ion loaded hydrophobic modified resin catalyst and an oxidizing agent are added; reaction is performed for 2 to 8h at 40 DEG C to 80 DEG C; filtering is performed to obtain filter liquid; then, the filter liquid is distilled; distillation residues are cleaned by alkanol; after the drying, the 3,3',5,5'-tetraalkyl-4,4'-diphenoquinone is obtained. The synthesis method is simple; after being recovered, the catalyst can be repeatedly used; the reaction selectivity is high; the yield of the 3,3',5,5'-tetraalkyl-4,4'-diphenoquinone can reach 95 percent or higher; no by-product of polyphenyl ether is generated; the copper ion content is smaller than 5mu g/g; the product purity is greater than or equal to 99.5 percent.

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