81752-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81752-77-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,5 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81752-77:
(7*8)+(6*1)+(5*7)+(4*5)+(3*2)+(2*7)+(1*7)=144
144 % 10 = 4
So 81752-77-4 is a valid CAS Registry Number.