4101-05-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4101-05-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,0 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4101-05:
(6*4)+(5*1)+(4*0)+(3*1)+(2*0)+(1*5)=37
37 % 10 = 7
So 4101-05-7 is a valid CAS Registry Number.