99557-75-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99557-75-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,5,5 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99557-75:
(7*9)+(6*9)+(5*5)+(4*5)+(3*7)+(2*7)+(1*5)=202
202 % 10 = 2
So 99557-75-2 is a valid CAS Registry Number.