873991-74-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 873991-74-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,3,9,9 and 1 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 873991-74:
(8*8)+(7*7)+(6*3)+(5*9)+(4*9)+(3*1)+(2*7)+(1*4)=233
233 % 10 = 3
So 873991-74-3 is a valid CAS Registry Number.