68390-20-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68390-20-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,3,9 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 68390-20:
(7*6)+(6*8)+(5*3)+(4*9)+(3*0)+(2*2)+(1*0)=145
145 % 10 = 5
So 68390-20-5 is a valid CAS Registry Number.