53399-11-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53399-11-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,3,9 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53399-11:
(7*5)+(6*3)+(5*3)+(4*9)+(3*9)+(2*1)+(1*1)=134
134 % 10 = 4
So 53399-11-4 is a valid CAS Registry Number.