68599-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68599-81-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,5,9 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 68599-81:
(7*6)+(6*8)+(5*5)+(4*9)+(3*9)+(2*8)+(1*1)=195
195 % 10 = 5
So 68599-81-5 is a valid CAS Registry Number.