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180298-84-4

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180298-84-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 180298-84-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,0,2,9 and 8 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 180298-84:
(8*1)+(7*8)+(6*0)+(5*2)+(4*9)+(3*8)+(2*8)+(1*4)=154
154 % 10 = 4
So 180298-84-4 is a valid CAS Registry Number.

180298-84-4Downstream Products

180298-84-4Relevant articles and documents

2-Bromo-1-phenylethylidenemalononitrile in the synthesis of thieno[3,2-b]pyridines and thiazolo[4,5-b]pyridines

Ivanov,Artemov,Shestopalov,Nesterov,Struchkov,Litvinov

, p. 359 - 364 (1996)

A novel regioselective synthesis of thieno[3,2-b]pyridines and thiazolo[4,5-b]pyridines from 2-bromo-1-phenylethylidenemalononitrile is proposed. In the case of the thiazolo[4,5-b]pyridines, the intermediate 5-(2,2-dicyano-1-phenylvinyl)thiazoles were separated. Formation of the thiazolo[4,5-b]pyridines was confirmed by x-ray analysis. 1996 Plenum Publishing Corporation.

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