31202-12-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31202-12-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,2,0 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31202-12:
(7*3)+(6*1)+(5*2)+(4*0)+(3*2)+(2*1)+(1*2)=47
47 % 10 = 7
So 31202-12-7 is a valid CAS Registry Number.