57031-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57031-51-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,0,3 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57031-51:
(7*5)+(6*7)+(5*0)+(4*3)+(3*1)+(2*5)+(1*1)=103
103 % 10 = 3
So 57031-51-3 is a valid CAS Registry Number.