142427-77-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142427-77-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,4,2 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 142427-77:
(8*1)+(7*4)+(6*2)+(5*4)+(4*2)+(3*7)+(2*7)+(1*7)=118
118 % 10 = 8
So 142427-77-8 is a valid CAS Registry Number.
142427-77-8Relevant articles and documents
Heterocyclic groups [b]-annulated to the 1,4-benzodiazepine system
Berghot
, p. 285 - 289 (1992)
Pyrazoles, isoxazoles, pyrimidinones, thiazines, mercaptopyrimidines, pyridones, and triazepinthiones were fused with diazepam (1) by reaction of the arylidenes 2a-h with hydrazines, hydroxylamine, urea or its derivatives, thiourea, ammonium thiocyanate,