12238-88-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12238-88-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,3 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 12238-88:
(7*1)+(6*2)+(5*2)+(4*3)+(3*8)+(2*8)+(1*8)=89
89 % 10 = 9
So 12238-88-9 is a valid CAS Registry Number.