443993-72-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443993-72-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,9,9 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 443993-72:
(8*4)+(7*4)+(6*3)+(5*9)+(4*9)+(3*3)+(2*7)+(1*2)=184
184 % 10 = 4
So 443993-72-4 is a valid CAS Registry Number.