Title: aci-nitro compounds
Long Title: IUPAC Gold Book - <i>aci</i>-nitro compounds
DOI: 10.1351/goldbook.A00085
Status: current

Definition
A class name for hydrocarbylideneazinic acids, $\ce{R2C=N^{+}(–O^{−})OH}$. The use of aci-nitro as a prefix in systematic nomenclature to name specific compounds is abandoned.

Related Term
- azinic acids: https://goldbook.iupac.org/terms/view/A00558

Source
- PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1351 (https://doi.org/10.1351/pac199567081307)

Other Outputs
- html: https://goldbook.iupac.org/terms/view/A00085/html
- json: https://goldbook.iupac.org/terms/view/A00085/json
- xml: https://goldbook.iupac.org/terms/view/A00085/xml

Citation: Citation: '<i>aci</i>-nitro compounds' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.A00085
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Accessed: 2026-06-05T05:36:40+00:00