15942-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15942-13-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,9,4 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 15942-13:
(7*1)+(6*5)+(5*9)+(4*4)+(3*2)+(2*1)+(1*3)=109
109 % 10 = 9
So 15942-13-9 is a valid CAS Registry Number.