179991-74-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 179991-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,9,9,9 and 1 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 179991-74:
(8*1)+(7*7)+(6*9)+(5*9)+(4*9)+(3*1)+(2*7)+(1*4)=213
213 % 10 = 3
So 179991-74-3 is a valid CAS Registry Number.