31880-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31880-45-2 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 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 31880-45:
(7*3)+(6*1)+(5*8)+(4*8)+(3*0)+(2*4)+(1*5)=112
112 % 10 = 2
So 31880-45-2 is a valid CAS Registry Number.