99854-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99854-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,5 and 4 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 99854-72:
(7*9)+(6*9)+(5*8)+(4*5)+(3*4)+(2*7)+(1*2)=205
205 % 10 = 5
So 99854-72-5 is a valid CAS Registry Number.