179898-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 179898-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,9,8,9 and 8 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 179898-74:
(8*1)+(7*7)+(6*9)+(5*8)+(4*9)+(3*8)+(2*7)+(1*4)=229
229 % 10 = 9
So 179898-74-9 is a valid CAS Registry Number.