4347-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4347-23-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,4 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4347-23:
(6*4)+(5*3)+(4*4)+(3*7)+(2*2)+(1*3)=83
83 % 10 = 3
So 4347-23-3 is a valid CAS Registry Number.