74181-02-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74181-02-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,8 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74181-02:
(7*7)+(6*4)+(5*1)+(4*8)+(3*1)+(2*0)+(1*2)=115
115 % 10 = 5
So 74181-02-5 is a valid CAS Registry Number.