12234-72-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12234-72-9 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 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 12234-72:
(7*1)+(6*2)+(5*2)+(4*3)+(3*4)+(2*7)+(1*2)=69
69 % 10 = 9
So 12234-72-9 is a valid CAS Registry Number.