C9H11NO3

C9H11NO3 is a molecular formula that can correspond to several different organic compounds rather than a single, uniquely defined substance. The nominal molar mass for this formula is about 181.19 g/mol.

The formula has a degrees of unsaturation (DBE) of 5, calculated by the expression DBE = (2C + 2 + N − H − X)/2, where C = 9, H = 11, N = 1, and X (halogens) = 0. A DBE of 5 is consistent with an aromatic ring or other combination of rings and multiple bonds, such as carbonyl groups, within the molecule.

Because many structural isomers share this exact formula, C9H11NO3 does not specify a single compound. Possible motifs include nitrogen-containing functionalities (for example amines, amides, or nitro groups) paired with three oxygen atoms arranged as carbonyl, hydroxyl, or ether linkages. The specific identity, including preferred naming, spectral features, and physical properties, depends on the precise arrangement of atoms.

Applications and occurrence: Compounds with this formula appear in various chemical contexts, including as intermediates in organic synthesis, in medicinal chemistry explorations, or in materials science. The safety, reactivity, and regulatory status of each isomer vary and must be evaluated for the exact compound.

Identification and data: Determining an exact structure requires spectroscopic data (such as NMR, IR, and mass spectrometry) and, when necessary, crystallography. Without a defined structure, general property data or hazard classifications cannot be reliably assigned.