316131-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 316131-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,1,6,1,3 and 1 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 316131-28:
(8*3)+(7*1)+(6*6)+(5*1)+(4*3)+(3*1)+(2*2)+(1*8)=99
99 % 10 = 9
So 316131-28-9 is a valid CAS Registry Number.