313686-17-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 313686-17-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,3,6,8 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 313686-17:
(8*3)+(7*1)+(6*3)+(5*6)+(4*8)+(3*6)+(2*1)+(1*7)=138
138 % 10 = 8
So 313686-17-8 is a valid CAS Registry Number.