84201-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84201-42-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,2,0 and 1 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 84201-42:
(7*8)+(6*4)+(5*2)+(4*0)+(3*1)+(2*4)+(1*2)=103
103 % 10 = 3
So 84201-42-3 is a valid CAS Registry Number.
84201-42-3Relevant articles and documents
UNE NOUVELLE REACTION DE CYCLISATION CONDUISANT A DES PYRROLOPYRAZINES
Corbet, J. P.,Paris, J. M.,Cotrel, C.
, p. 3565 - 3566 (1982)
Reduction of 5-(2-pyrazinyl-1,2-dithiole-3-thiones by sodium sulphide, followed by alkylation of the intermediates yields pyrrolo(1,2-a)pyrazines.
