75331-81-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75331-81-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,3,3 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 75331-81:
(7*7)+(6*5)+(5*3)+(4*3)+(3*1)+(2*8)+(1*1)=126
126 % 10 = 6
So 75331-81-6 is a valid CAS Registry Number.