Cas 1337535-22-4,5-(m-nitrophenyl)-3-phenyl-4,5-dihydro-1,2,4-triazin-6(1H)-one

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Check Digit Verification of cas no

The CAS Registry Mumber 1337535-22-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,7,5,3 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1337535-22:
(9*1)+(8*3)+(7*3)+(6*7)+(5*5)+(4*3)+(3*5)+(2*2)+(1*2)=154
154 % 10 = 4
So 1337535-22-4 is a valid CAS Registry Number.

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1337535-22-4Relevant academic research and scientific papers

The reaction of optically active α-aminocarboxylic acid hydrazides with triethyl orthoesters

Kudelko, Agnieszka,Zieliński, Wojciech,Ejsmont, Krzysztof

, p. 7838 - 7845 (2011)

New derivatives of 2-(1-amino-1-phenylmethyl)-1,3,4-oxadiazole and 1,2,4-triazin-6-one were synthesised in the reactions of optically active α-aminocarboxylic acid hydrazides and triethyl orthoesters in xylene. The electronic and steric effects of substituents at the α position influencing the formation of five- or six-membered products are discussed.

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