4623-58-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4623-58-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,6,2 and 3 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4623-58:
(6*4)+(5*6)+(4*2)+(3*3)+(2*5)+(1*8)=89
89 % 10 = 9
So 4623-58-9 is a valid CAS Registry Number.