674817-79-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 674817-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,4,8,1 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 674817-79:
(8*6)+(7*7)+(6*4)+(5*8)+(4*1)+(3*7)+(2*7)+(1*9)=209
209 % 10 = 9
So 674817-79-9 is a valid CAS Registry Number.