C20H21NO3 is a chemical compound with a molecular formula indicating it contains 20 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, and 3 oxygen atoms. C20H21NO3 likely belongs to a class of organic molecules, possibly a derivative of a phenol or an aromatic amine, given the presence of a nitrogen atom. The three oxygen atoms could be part of carboxyl, hydroxyl, or ether groups, suggesting potential acidity or reactivity. The exact structure and properties would depend on the arrangement of these atoms and the functional groups present.
The CAS Registry Mumber 3299-52-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,9 and 9 respectively; the second part has 2 digits, 5 and 2 respectively. Calculate Digit Verification of CAS Registry Number 3299-52: (6*3)+(5*2)+(4*9)+(3*9)+(2*5)+(1*2)=103 103 % 10 = 3 So 3299-52-3 is a valid CAS Registry Number.