78870-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78870-31-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,8,7 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 78870-31:
(7*7)+(6*8)+(5*8)+(4*7)+(3*0)+(2*3)+(1*1)=172
172 % 10 = 2
So 78870-31-2 is a valid CAS Registry Number.