87831-19-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87831-19-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,8,3 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87831-19:
(7*8)+(6*7)+(5*8)+(4*3)+(3*1)+(2*1)+(1*9)=164
164 % 10 = 4
So 87831-19-4 is a valid CAS Registry Number.
87831-19-4Relevant academic research and scientific papers
ACTIVATED NITRILES IN HETEROCYCLIC SYNTHESIS. SYNTHESIS OF SEVERAL NEW PYRIMIDINE AND PYRIDAZINE DERIVATIVES.
Sadek,Fahmy,Mohareb,Elnagdi
, p. 101 - 103 (2007/10/02)
Several new pyrimidine, pyridazine, and pyridine derivatives were obtained from 2-(ethoxycarbonyl)-3-aminopentenedinitrile (I) as starting component.