57428-31-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57428-31-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,4,2 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57428-31:
(7*5)+(6*7)+(5*4)+(4*2)+(3*8)+(2*3)+(1*1)=136
136 % 10 = 6
So 57428-31-6 is a valid CAS Registry Number.