5143-38-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5143-38-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,4 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5143-38:
(6*5)+(5*1)+(4*4)+(3*3)+(2*3)+(1*8)=74
74 % 10 = 4
So 5143-38-4 is a valid CAS Registry Number.