68239-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68239-56-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,2,3 and 9 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 68239-56:
(7*6)+(6*8)+(5*2)+(4*3)+(3*9)+(2*5)+(1*6)=155
155 % 10 = 5
So 68239-56-5 is a valid CAS Registry Number.