4148-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4148-55-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,4 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4148-55:
(6*4)+(5*1)+(4*4)+(3*8)+(2*5)+(1*5)=84
84 % 10 = 4
So 4148-55-4 is a valid CAS Registry Number.