57984-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57984-09-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,9,8 and 4 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 57984-09:
(7*5)+(6*7)+(5*9)+(4*8)+(3*4)+(2*0)+(1*9)=175
175 % 10 = 5
So 57984-09-5 is a valid CAS Registry Number.