31516-35-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31516-35-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,5,1 and 6 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31516-35:
(7*3)+(6*1)+(5*5)+(4*1)+(3*6)+(2*3)+(1*5)=85
85 % 10 = 5
So 31516-35-5 is a valid CAS Registry Number.