68342-40-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68342-40-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,3,4 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 68342-40:
(7*6)+(6*8)+(5*3)+(4*4)+(3*2)+(2*4)+(1*0)=135
135 % 10 = 5
So 68342-40-5 is a valid CAS Registry Number.