23288-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23288-89-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,2,8 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 23288-89:
(7*2)+(6*3)+(5*2)+(4*8)+(3*8)+(2*8)+(1*9)=123
123 % 10 = 3
So 23288-89-3 is a valid CAS Registry Number.