12239-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12239-25-7 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 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 12239-25:
(7*1)+(6*2)+(5*2)+(4*3)+(3*9)+(2*2)+(1*5)=77
77 % 10 = 7
So 12239-25-7 is a valid CAS Registry Number.