23251-12-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23251-12-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,2,5 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 23251-12:
(7*2)+(6*3)+(5*2)+(4*5)+(3*1)+(2*1)+(1*2)=69
69 % 10 = 9
So 23251-12-9 is a valid CAS Registry Number.