189744-53-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189744-53-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,7,4 and 4 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 189744-53:
(8*1)+(7*8)+(6*9)+(5*7)+(4*4)+(3*4)+(2*5)+(1*3)=194
194 % 10 = 4
So 189744-53-4 is a valid CAS Registry Number.
189744-53-4Relevant articles and documents
Pyrimidine compounds
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, (2008/06/13)
Compounds of the formula STR1 wherein R1 and R2 each individually are lower-alkyl or amino, A is STR2 B is hydrogen in A4, A5 and A6 ; STR3 in A1 -A6 ; lower-alkoxy in A4/s
