57709-92-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57709-92-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,7,0 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57709-92:
(7*5)+(6*7)+(5*7)+(4*0)+(3*9)+(2*9)+(1*2)=159
159 % 10 = 9
So 57709-92-9 is a valid CAS Registry Number.