23153-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23153-81-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,1,5 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 23153-81:
(7*2)+(6*3)+(5*1)+(4*5)+(3*3)+(2*8)+(1*1)=83
83 % 10 = 3
So 23153-81-3 is a valid CAS Registry Number.