99342-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99342-65-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,3,4 and 2 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 99342-65:
(7*9)+(6*9)+(5*3)+(4*4)+(3*2)+(2*6)+(1*5)=171
171 % 10 = 1
So 99342-65-1 is a valid CAS Registry Number.