4146-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4146-56-9 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 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4146-56:
(6*4)+(5*1)+(4*4)+(3*6)+(2*5)+(1*6)=79
79 % 10 = 9
So 4146-56-9 is a valid CAS Registry Number.