4705-73-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4705-73-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,0 and 5 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4705-73:
(6*4)+(5*7)+(4*0)+(3*5)+(2*7)+(1*3)=91
91 % 10 = 1
So 4705-73-1 is a valid CAS Registry Number.