57501-72-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57501-72-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,0 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57501-72:
(7*5)+(6*7)+(5*5)+(4*0)+(3*1)+(2*7)+(1*2)=121
121 % 10 = 1
So 57501-72-1 is a valid CAS Registry Number.