42163-39-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42163-39-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,6 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42163-39:
(7*4)+(6*2)+(5*1)+(4*6)+(3*3)+(2*3)+(1*9)=93
93 % 10 = 3
So 42163-39-3 is a valid CAS Registry Number.