199480-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 199480-23-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,4,8 and 0 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 199480-23:
(8*1)+(7*9)+(6*9)+(5*4)+(4*8)+(3*0)+(2*2)+(1*3)=184
184 % 10 = 4
So 199480-23-4 is a valid CAS Registry Number.
199480-23-4Relevant articles and documents
Substituted 2,4-diaminopyrimidines
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, (2008/06/13)
Compounds of formula I STR1 wherein R1 is lower-alkoxy, R2 is bromine, lower-alkoxy or hydroxy, R3 is hydrogen, lower-alkyl, cycloalkyl, aryl, heterocyclyl, aralkyl, heterocyclyl-lower-alkyl or cyano, R4 and Rs