Benzene is an important organic compound with the chemical formula C6H6, and its molecule consists of a ring of 6 carbon atoms, each with 1 hydrogen atom. Benzene is a sweet, flammable, colorless and transparent liquid with carcinogenic toxicity at room temperature, and has a strong aromatic odor. It is insoluble in water, easily soluble in organic solvents, and can also be used as an organic solvent itself. The ring system of benzene is called benzene ring, and the structure after removing one hydrogen atom from the benzene ring is called phenyl. Benzene is one of the most important basic organic chemical raw materials. Many important chemical intermediates can be derived from benzene through substitution reaction, addition reaction and benzene ring cleavage reaction.
Isothiazole or 1,2-thiazole is an organic compound containing a five-membered aromatic ring consisting of three carbon atoms, one nitrogen atom and one sulfur atom. In contrast to isomeric thiazoles, the two heteroatoms are in adjacent positions. The ring structure of isothiazoles is incorporated into larger compounds that are biologically active, such as the drugs ziprasidone and piperone. Isothiazoles are an important class of five-membered sulfur heterocyclic compounds that are widely used in medicinal chemistry and organic synthesis due to the unique properties of two electronegative heteroatoms in the 1,2-relationship.
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