663956-49-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663956-49-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,9,5 and 6 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 663956-49:
(8*6)+(7*6)+(6*3)+(5*9)+(4*5)+(3*6)+(2*4)+(1*9)=208
208 % 10 = 8
So 663956-49-8 is a valid CAS Registry Number.
663956-49-8Relevant articles and documents
NITROGEN-CONTAINING COMPOUNDS
-
Page/Page column 37, (2010/02/11)
A compound represented by formula (I); wherein ring A represents a nitrogen containing heterocyclic ring, ring B represents 5-membered heterocyclic ring which may have substituents, R represents a hydrogen atom or cyano and the other symbols represent as