C4H9NO2S

C4H9NO2S is the molecular formula for a family of organic compounds that contains four carbon atoms, nine hydrogens, one nitrogen, two oxygens, and one sulfur. As a formula, it does not specify how these atoms are connected or arranged in three-dimensional space, so it represents multiple possible structures.

There are several constitutional isomers that fit this composition. Structural motifs compatible with C4H9NO2S include sulfonamide-type arrangements (for example, sulfur bound to two oxygens and to a nitrogen substituent) and other sulfur- and oxygen-containing frameworks that incorporate nitrogen. The exact arrangement determines the compound’s properties, reactivity, and potential applications, so the formula alone cannot predict behavior.

The calculated molar mass of C4H9NO2S is approximately 135.18 g/mol. Physical properties such as melting point, volatility, and solubility vary widely among the possible isomers. In practical terms, compounds with this formula are used as building blocks in organic synthesis and may appear in medicinal chemistry or materials science as intermediates or candidates, depending on their specific structure.

To identify a particular compound with this formula, structural information is required, such as a drawn structure, SMILES notation, or InChI key. Common laboratory approaches to obtaining C4H9NO2S-containing compounds involve introduction of sulfur-oxygen functionalities to a carbon skeleton, followed by appropriate functional-group transformations.

Because many distinct isomers share this formula, C4H9NO2S is best understood as a descriptive formula rather than a single, uniquely defined compound.