1423-17-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1423-17-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,2 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1423-17:
(6*1)+(5*4)+(4*2)+(3*3)+(2*1)+(1*7)=52
52 % 10 = 2
So 1423-17-2 is a valid CAS Registry Number.