99631-75-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99631-75-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,6,3 and 1 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99631-75:
(7*9)+(6*9)+(5*6)+(4*3)+(3*1)+(2*7)+(1*5)=181
181 % 10 = 1
So 99631-75-1 is a valid CAS Registry Number.