Arsole

    Arsole is a chemical compound of the formula C₄H₅As. The structure is like pyrrole except that an arsenic atom is substituted for the nitrogen atom and that arsole is only mildly aromatic. Arsole itself does exist but is rarely found in its pure form. Several substituted analogs called arsoles also exist.

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When arsole is fused to a benzene ring, this molecule is called benzarsole.

Arsole may be referred to in some texts as 'Arsenole' - not the correct IUPAC name, but avoids confusion with a similar sounding slang term for the anus.

See also

• Pyrrole, a nitrogen analog.
• Furan, an oxygen analog.
• Thiophene, a sulfur analog.
• Simple aromatic rings
• Varsole, a petroleum distillate with a boiling range of 150 - 200 °C.