15940-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15940-61-1 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 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 15940-61:
(7*1)+(6*5)+(5*9)+(4*4)+(3*0)+(2*6)+(1*1)=111
111 % 10 = 1
So 15940-61-1 is a valid CAS Registry Number.