2342-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2342-71-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,4 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2342-71:
(6*2)+(5*3)+(4*4)+(3*2)+(2*7)+(1*1)=64
64 % 10 = 4
So 2342-71-4 is a valid CAS Registry Number.