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25779-26-4

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25779-26-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25779-26-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,7,7 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 25779-26:
(7*2)+(6*5)+(5*7)+(4*7)+(3*9)+(2*2)+(1*6)=144
144 % 10 = 4
So 25779-26-4 is a valid CAS Registry Number.

25779-26-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 15, 2017

Revision Date: Aug 15, 2017

1.Identification

1.1 GHS Product identifier

Product name 2,3,5-tribromocyclohexa-2,5-diene-1,4-dione

1.2 Other means of identification

Product number -
Other names tribromo-[1,4]benzoquinone

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:25779-26-4 SDS

25779-26-4Relevant articles and documents

The Nitration of Some Substituted 4-Methylphenols; X-Ray Crystal Structure of (Z)-3-Bromo-5-(bromonitromethylene)furan-2(5H)-one

Gray, Michael J.,Hartshorn, Michael P.,Penfold, Bruce R.,Vaugnan, John

, p. 55 - 64 (2007/10/02)

The nitrations of 2-substituted 4-methyl-6-nitrophenols (1a), (1b) and (1c) give 6-substituted 3-methyl-2-nitro-1,4-benzoquinones (2a), (2b) and (2c).Similar reaction of 2,3-dibromo-4-methyl-6-nitrophenol (5) gives 2,3-dibromo-5-methyl-6-nitro-1,4-benzoquinone (7) and the 4-nitratocyclohexa-2,5-dienone (12).In contrast, 2,3,6-tribromo- (4a) and 2,6-dibromo- (4b) 4-methylphenols give 1,4-benzoquinones with loss of the methyl group.Lactone (18) was formed in the nitration of the 2,6-dibromophenol (4b) and its structure was determined by single-crystal X-ray analysis.

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