31888-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31888-17-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,8,8 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 31888-17:
(7*3)+(6*1)+(5*8)+(4*8)+(3*8)+(2*1)+(1*7)=132
132 % 10 = 2
So 31888-17-2 is a valid CAS Registry Number.