2073-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2073-72-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,7 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2073-72:
(6*2)+(5*0)+(4*7)+(3*3)+(2*7)+(1*2)=65
65 % 10 = 5
So 2073-72-5 is a valid CAS Registry Number.