99716-11-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99716-11-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,7,1 and 6 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99716-11:
(7*9)+(6*9)+(5*7)+(4*1)+(3*6)+(2*1)+(1*1)=177
177 % 10 = 7
So 99716-11-7 is a valid CAS Registry Number.