57540-84-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57540-84-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,4 and 0 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57540-84:
(7*5)+(6*7)+(5*5)+(4*4)+(3*0)+(2*8)+(1*4)=138
138 % 10 = 8
So 57540-84-8 is a valid CAS Registry Number.