4443-27-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4443-27-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,4 and 3 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4443-27:
(6*4)+(5*4)+(4*4)+(3*3)+(2*2)+(1*7)=80
80 % 10 = 0
So 4443-27-0 is a valid CAS Registry Number.