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Check Digit Verification of cas no

The CAS Registry Mumber 105257-86-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,5,2,5 and 7 respectively; the second part has 2 digits, 8 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 105257-86:
(8*1)+(7*0)+(6*5)+(5*2)+(4*5)+(3*7)+(2*8)+(1*6)=111
111 % 10 = 1
So 105257-86-1 is a valid CAS Registry Number.

105257-86-1SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name	[4-(3,5-diphenyl-3,4-dihydropyrazol-2-yl)phenyl]-(4-nitrophenyl)diazene

1.2 Other means of identification

Product number	-
Other names	-

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:105257-86-1 SDS

105257-86-1Upstream product

105257-86-1Downstream Products

105257-86-1Relevant articles and documents

ELECTROPHILIC SUBSTITUTION IN N-ARYL-2-PYRAZOLINES. 4. AZO COUPLING REACTIONS

Orlov, V. D.,Aziz, M. A.,Mchedlov-Petrosyan, N. O.,Asoka, P. K. D.

, p. 1246 - 1250 (2007/10/02)

4-R-Phenyldiazonium chlorides enter into the azo coupling reaction with 2-pyrazoline derivatives at the para position of the N-aromatic nucleus.The reaction is very sensitive to steric and electronic effects of the substituting groups in the pyrazolines.The electronic spectra and acid-base properties of the substituted azopyrazolines are discussed.

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CAS

105257-86-1