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202118-42-1

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202118-42-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 202118-42-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,1,1 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 202118-42:
(8*2)+(7*0)+(6*2)+(5*1)+(4*1)+(3*8)+(2*4)+(1*2)=71
71 % 10 = 1
So 202118-42-1 is a valid CAS Registry Number.

202118-42-1Downstream Products

202118-42-1Relevant academic research and scientific papers

The chameleon-like behaviour of 3-amino-1,2,4-triazole in the Biginelli reaction: Unexpected formation of a novel spiroheterocyclic system

Světlík, Jan,Kettmann, Viktor

, p. 1062 - 1066 (2011)

A novel Biginelli-like assembly of 3-amino-1,2,4-triazole with methyl acetoacetate and salicylaldehyde has been developed to enable easy access to spiro{[1]benzopyran-2,7′-[1,2,4]triazolo[1,5-a]pyrimidine} compounds as representatives of a new class of sp

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