75980-56-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75980-56-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,9,8 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 75980-56:
(7*7)+(6*5)+(5*9)+(4*8)+(3*0)+(2*5)+(1*6)=172
172 % 10 = 2
So 75980-56-2 is a valid CAS Registry Number.