12539-26-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 12539-26-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,5,3 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 12539-26:
(7*1)+(6*2)+(5*5)+(4*3)+(3*9)+(2*2)+(1*6)=93
93 % 10 = 3
So 12539-26-3 is a valid CAS Registry Number.