53443-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53443-31-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,4,4 and 3 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53443-31:
(7*5)+(6*3)+(5*4)+(4*4)+(3*3)+(2*3)+(1*1)=105
105 % 10 = 5
So 53443-31-5 is a valid CAS Registry Number.