12240-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12240-04-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,4 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 12240-04:
(7*1)+(6*2)+(5*2)+(4*4)+(3*0)+(2*0)+(1*4)=49
49 % 10 = 9
So 12240-04-9 is a valid CAS Registry Number.