31645-88-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 31645-88-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,6,4 and 5 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 31645-88:
(7*3)+(6*1)+(5*6)+(4*4)+(3*5)+(2*8)+(1*8)=112
112 % 10 = 2
So 31645-88-2 is a valid CAS Registry Number.