15939-93-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15939-93-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,9,3 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 15939-93:
(7*1)+(6*5)+(5*9)+(4*3)+(3*9)+(2*9)+(1*3)=142
142 % 10 = 2
So 15939-93-2 is a valid CAS Registry Number.