474923-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 474923-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,4,9,2 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 474923-21:
(8*4)+(7*7)+(6*4)+(5*9)+(4*2)+(3*3)+(2*2)+(1*1)=172
172 % 10 = 2
So 474923-21-2 is a valid CAS Registry Number.