68439-47-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68439-47-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,4,3 and 9 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 68439-47:
(7*6)+(6*8)+(5*4)+(4*3)+(3*9)+(2*4)+(1*7)=164
164 % 10 = 4
So 68439-47-4 is a valid CAS Registry Number.