31288-32-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31288-32-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,2,8 and 8 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 31288-32:
(7*3)+(6*1)+(5*2)+(4*8)+(3*8)+(2*3)+(1*2)=101
101 % 10 = 1
So 31288-32-1 is a valid CAS Registry Number.