99976-65-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99976-65-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,7 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99976-65:
(7*9)+(6*9)+(5*9)+(4*7)+(3*6)+(2*6)+(1*5)=225
225 % 10 = 5
So 99976-65-5 is a valid CAS Registry Number.