23968-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23968-81-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,9,6 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 23968-81:
(7*2)+(6*3)+(5*9)+(4*6)+(3*8)+(2*8)+(1*1)=142
142 % 10 = 2
So 23968-81-2 is a valid CAS Registry Number.