313-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 313-17-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,1 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 313-17:
(5*3)+(4*1)+(3*3)+(2*1)+(1*7)=37
37 % 10 = 7
So 313-17-7 is a valid CAS Registry Number.