57565-84-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57565-84-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,5,6 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57565-84:
(7*5)+(6*7)+(5*5)+(4*6)+(3*5)+(2*8)+(1*4)=161
161 % 10 = 1
So 57565-84-1 is a valid CAS Registry Number.