57711-12-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57711-12-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,1 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57711-12:
(7*5)+(6*7)+(5*7)+(4*1)+(3*1)+(2*1)+(1*2)=123
123 % 10 = 3
So 57711-12-3 is a valid CAS Registry Number.