317855-13-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 317855-13-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,7,8,5 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 317855-13:
(8*3)+(7*1)+(6*7)+(5*8)+(4*5)+(3*5)+(2*1)+(1*3)=153
153 % 10 = 3
So 317855-13-3 is a valid CAS Registry Number.