57743-84-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57743-84-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,4 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 57743-84:
(7*5)+(6*7)+(5*7)+(4*4)+(3*3)+(2*8)+(1*4)=157
157 % 10 = 7
So 57743-84-7 is a valid CAS Registry Number.