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84312-62-9

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84312-62-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84312-62-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,3,1 and 2 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 84312-62:
(7*8)+(6*4)+(5*3)+(4*1)+(3*2)+(2*6)+(1*2)=119
119 % 10 = 9
So 84312-62-9 is a valid CAS Registry Number.

84312-62-9Relevant articles and documents

A New Synthesis of 1,4-Diaryl-1,2,3,4-tetrahydropyrazines and 1,4-Diaryl-1,2,3,4-tetrahydro-1,2,3,4-tetrazines from N,N'-Diarylethylenediimines

Sayed, G. H.,Elhalim, M. S. Abd,El-Kady, M. Y.,Elwahab, L. M. Abd

, p. 589 - 591 (2007/10/02)

N,N'-Diarylethylenediimines (Ia and Ib) react with N-arylmaleimides, maleic anhydride and the most active dienophile 4-phenyl-1,2,4-triazolinedione to give the title pyrazines (IIa-f) and tetrazines (IIIa,b), respectively.Reactions of IIa and IIb with hydrazine hydrate and amines have also been investigated.

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