67677-96-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67677-96-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,6,7 and 7 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 67677-96:
(7*6)+(6*7)+(5*6)+(4*7)+(3*7)+(2*9)+(1*6)=187
187 % 10 = 7
So 67677-96-7 is a valid CAS Registry Number.
67677-96-7Relevant articles and documents
Azolopyrimidines and Pyrimidoquinazolines From 4-Chloropyrimidines
El-Reedy, A.M.,Ali, A.S.,Ayyad, A.O.
, p. 313 - 316 (2007/10/02)
5-Cyano-3,4-dihydro-6-phenyl-2-substitutedpyrimidin-4-ones Ia-c reacted with phosphorus oxychloride to give the corresponding 4-chloropyrimidine derivatives IIa-c.Compounds IIa-c reacted with aniline and hydrazine to yield the 4-anilino, IIIa,e, and 4-hyd