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| Names of acids |
Acyl radicals |
 |
| Systematic |
Trivial |
Trivial name |
Formula |
| (a) Saturated aliphatic monocarboxylic acids (limiting list) |
Methanoic |
Formic |
Formyl |
 |
Ethanoic |
Acetic |
Acetyl |
 |
Propanoic |
Propionic |
Propionyl |
 |
Butanoic |
Butyric |
Butyryl |
 |
2-Methylpropanoic
 |
Isobutyric
 |
Isobutyryl |
 |
Pentanoic |
Valeric |
Valeryl |
 |
3-Methylbutanoic
 |
Isovaleric
 |
Isovaleryl |
 |
| 2,2-Dimethylpropanoic |
Pivalic |
Pivaloyl |
 |
| Dodecanoic |
Lauric |
Lauroyl |
 |
| Tetradecanoic |
Myristic |
Myristoyl |
 |
| Hexadecanoic |
Palmitic |
Palmitoyl |
 |
| Octadecanoic |
Stearic |
Stearoyl |
 |
| Note: The names caproic, caprylic, and capric acid (for hexanoic, octanoic, and decanoic acid, respectively) are abandoned. |
| (b) Saturated aliphatic dicarboxylic acids (limiting list) |
Ethanedioic |
Oxalic |
Oxalyl |
 |
Propanedioic |
Malonic |
Malonyl |
 |
Butanedioic |
Succinic |
Succinyl |
 |
Pentanedioic |
Glutaric |
Glutaryl |
 |
Hexanedioic |
Adipic |
Adipoyl |
 |
| Heptanedioic |
Pimelic |
Pimeloyl |
 |
| Octanedioic |
Suberic |
Suberoyl |
 |
| Nonanedioic |
Azelaic |
Azelaoyl |
 |
| Decanedioic |
Sebacic |
Sebacoyl |
 |
| (c) Unsaturated aliphatic acids (non-limiting list) |
Propenoic |
Acrylic |
Acryloyl |
 |
Propynoic |
Propiolic |
Propioloyl |
 |
2-Methylpropenoic
 |
Methacrylic |
Mathacryloyl |
 |
trans-2-Butenoic |
Crotonic |
Crotonoyl |
 |
cis-2-Butenoic |
Isocrotonic |
Isocrotonoyl |
 |
cis-9-Octadecenoic
 |
Oleic |
Oleoyl |
 |
trans-9-Octadecenoic
 |
Elaidic |
Elaidoyl |
 |
cis-Butenedioic |
Maleic |
Maleoyl |
 |
trans-Butenedioic |
Fumaric |
Fumaroyl |
 |
| cis-Methylbutenedioic |
Citraconic |
Citraconoyl |
 |
trans-Methylbutenedioic |
Mesaconic |
Mesaconoyl |
 |
(d) Carbocyclic carboxylic acids (non-limiting list) |
1,2,2-Trimethyl-1,3-cyclo- pentanedicarboxylic acid |
Camphoric |
Camphoroyl |
 |
| Benzenecarboxylic |
Benzoic |
Benzoyl |
 |
| 1,2-Benzenedicarboxylic |
Phthalic |
Phthaloyl |
 |
| 1,3-Benzenedicarboxylic |
Isophthalic |
Isophthaloyl |
 |
| 1,4-Benzenedicarboxylic |
Terephthalic |
Terephthaloyl |
 |
| Naphthalenecarboxylic |
Naphthoic |
Naphthoyl (2-shown) |
 |
| Methylbenzenecarboxylic |
Toluic |
Toluoyl (o-shown) |
 |
| 2-Phenylpropanoic |
Hydratropic |
Hydratropoyl |
 |
| 2-Phenylpropenoic |
Atropic |
Atropoyl |
 |
3-Phenylpropenoic (trans-) |
Cinnamic |
Cinnamoyl |
 |
(e) Heterocyclic carboxylic acids (non-limiting list) |
| Furancarboxylic |
Furoic |
Furoyl (3-shown) |
 |
| Thiophenecarboxylic |
Thenoic |
Thenoyl (2-shown) |
 |
| 3-Pyridinecarboxylic |
Nicotine |
Nicotinoyl |
 |
| 4-Pyridinecarboxylic |
Isonicotinic |
Isonicatinoyl |
 |