Chemistry:List of carboxylic acids
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Short description: Wikipedia list article
Carboxylic acids are organic acids characterized by a carboxyl (-COOH) functional group. The naming of these compounds is governed by IUPAC nomenclature, which ensures systematic and consistent naming of chemicals. Numerous organic compounds have other common names, often originating in historical source material thereof. The systematic IUPAC name is not always the preferred IUPAC name, for example, lactic acid is a common, and also the preferred, name for what systematic rules call 2-hydroxypropanoic acid.
This list is ordered by the number of carbon atoms in a carboxylic acid.
C1
IUPAC name | Common name | Structural formula | Notes |
methanoic acid | formic acid | HCOOH | |
hydroxymethanoic acid | carbonic acid carbon dioxide hydrate |
HOCOOH
or H2CO3 |
Despite having an organic-like name, H2CO3 is not considered an organic compound. |
C2
IUPAC name | Common name | Simpler formula | Structural formula |
ethanoic acid | acetic acid | C2H4O2 | CH3COOH |
2-hydroxyethanoic acid | glycolic acid dicarbonous acid hydroxyacetic acid |
C2H4O3 | HOCH2COOH |
oxoethanoic acid | glyoxylic acid oxoacetic acid formylformic acid |
C2H2O3 | OHCCOOH |
ethanedioic acid | oxalic acid | C2H2O4 | HOOCCOOH |
C3
IUPAC name | Common name | Structural formula |
propanoic acid | propionic acid ethanecarboxylic acid |
CH3CH2COOH |
propenoic acid | acrylic acid acroleic acid ethylenecarboxylic acid vinylformic acid |
CH2=CHCOOH |
propynoic acid | propiolic acid propargylic acid acetylene carboxylic acid |
CH≡CCOOH |
2-hydroxypropanoic acid | lactic acid milk acid |
CH3CHOHCOOH |
3-hydroxypropanoic acid | 3-hydroxipropionic acid hydracrylic acid |
CH2OHCH2COOH |
2,3-dihydroxypropanoic acid | glyceric acid | CH2OHCHOHCOOH |
2-oxopropanoic acid | pyruvic acid α-ketopropionic acid acetylformic acid pyroracemic acid |
CH3COCOOH |
3-oxopropanoic acid | malonic semialdehyde 3-oxopropionic acid |
OHCCH2COOH |
2,3-dioxopropanoic acid | mesoxalic semialdehyde dioxopropionic acid |
OHCCOCOOH |
propanedioic acid | malonic acid methanedicarboxylic acid |
HOOCCH2COOH |
2-hydroxypropanedioic acid | tartronic acid hydroxymalonic acid |
HOOCCHOHCOOH |
2,2-dihydroxypropanedioic acid | dihydroxymalonic acid mesoxalic acid monohydrate |
HOOCC(OH)2COOH |
oxopropanedioic acid | mesoxalic acid ketomalonic acid oxomalonic acid |
HOOCCOCOOH |
oxirane-2-carboxylic acid | glycidic acid | epoxide |
C4
IUPAC name | Common name | Structural formula |
butanoic acid | butyric acid propanecarboxylic acid |
CH3(CH2)2COOH |
2-methylpropanoic acid | isobutyric acid isobutanoic acid |
(CH3)2CHCOOH |
(E)-but-2-enoic acid | crotonic acid trans-butenoic acid 3-methylacrylic acid β-methacrylic acid (E)-2-butenoic acid |
CH3CH=CHCOOH |
(Z)-but-2-enoic acid | isocrotonic acid cis-crotonic acid cis-butenoic acid (Z)-2-butenoic acid |
CH3CH=CHCOOH |
2-methylpropenoic acid | methacrylic acid α-methacrylic acid 2-methylacrylic acid isobutenoic acid |
CH2=C(CH3)COOH |
but-3-enoic acid | vinylacetic acid allylic acid 3-butenoic acid β-butenoic acid |
CH2=CHCH2COOH |
but-2-ynoic acid | tetrolic acid 2-butynoic acid |
CH3C≡CCOOH |
2-hydroxybutanoic acid | 2-hydroxybutyric acid α-hydroxybutyrate |
CH3CH2CHOHCOOH |
3-hydroxybutanoic acid | β-hydroxybutyric acid 3-hydroxybutyric acid |
CH3CHOHCH2COOH |
4-hydroxybutanoic acid | γ-hydroxybutyric acid GHB 4-hydroxybutyric acid |
HOCH2(CH2)2COOH |
2-oxobutanoic acid | α-ketobutyric acid | CH3CH2COCOOH |
3-oxobutanoic acid | acetoacetic acid diacetic acid |
CH3COCH2COOH |
4-oxobutanoic acid | succinic semialdehyde | OHC(CH2)2COOH |
butanedioic acid | succinic acid | HOOC(CH2)2COOH |
2-methylpropanedioic acid | methylmalonic acid | HOOCCH(CH3)COOH |
(E)-butenedioic acid | fumaric acid trans-1,2-ethylenedicarboxylic acid trans-butenedioic acid allomaleic acid boletic acid donitic acid lichenic acid |
HOOCCH=CHCOOH |
(Z)-butenedioic acid | maleic acid cis-butenedioic acid malenic acid maleinic acid toxilic acid |
HOOCCH=CHCOOH |
butynedioic acid | acetylenedicarboxylic acid 2-butynedioic acid |
HOOCC≡CCOOH |
hydroxybutanedioic acid | malic acid hydroxysuccinic acid 2-hydroxybutanedioic acid |
HOOCCH2CHOHCOOH |
2,3-dihydroxybutanedioic acid | tartaric acid 2,3-dihydroxysuccinic acid racemic acid threaric acid uvic acid paratartaric acid |
HOOC(CHOH)2COOH |
oxobutanedioic acid | oxaloacetic acid oxalacetic acid oxosuccinic acid ketosuccinic acid |
HOOCCH2COCOOH |
dioxobutanedioic acid | dioxosuccinic acid | HOOC(CO)2COOH |
C5
IUPAC name | Common name | Structural formula |
pentanoic acid | valeric acid valerianic acid butane-1-carboxylic acid |
CH3(CH2)3COOH |
3-methylbutanoic acid | isovaleric acid isopentanoic acid delphinic acid β-methylbutiric acid 3-methylbutiric acid |
(CH3)2CHCH2COOH |
2-methylbutanoic acid | 2-methylbutiric acid | CH3CH2CH(CH3)COOH |
2,2-dimethylpropanoic acid | pivalic acid trimethylacetic acid neopentanoic acid |
(CH3)3CCOOH |
3-hydroxypentanoic acid | β-hydroxyvaleric acid 3-hydroxyvaleric acid β-hydroxypentanoate |
CH3CH2CHOHCH2COOH |
4-hydroxypentanoic acid | γ-hydroxyvaleric acid GHV 4-methyl-GHB |
CH3CHOH(CH2)2COOH |
3-hydroxy-3-methylbutanoic acid | β-hydroxy β-methylbutyric acid HMB β-hydroxyisovaleric acid 3-hydroxyisovaleric acid |
(CH3)2COHCH2COOH |
pentanedioic acid | glutaric acid propane-1,3-dicarboxylic acid n-pyrotartaric acid |
HOOC(CH2)3COOH |
2-oxopentanedioic acid | α-ketoglutaric acid 2-ketoglutaric acid 2-oxoglutaric acid oxoglutaric acid |
HOOC(CH2)2COCOOH |
3-oxopentanedioic acid | acetonedicarboxylic acid 3-oxoglutaric acid β-ketoglutaric acid 3-ketoglutaric acid |
HOOCCH2COCH2COOH |
furan-2-carboxylic acid | 2-furoic acid α-furoic acid pyromucic acid 2-carboxyfuran α-furancarboxylic acid |
furyl-COOH |
tetrahydrofuran-2-carboxylic acid | tetrahydro-2-furoic acid tetrahydrofuroic acid tetrahydrofuran-2-carboxylic acid |
tetrahydrofuryl-COOH |
C6
IUPAC name | Common name | Structural formula |
hexanoic acid | caproic acid n-caproic acid |
CH3(CH2)4COOH |
hexanedioic acid | adipic acid hexane-1,6-dioic acid |
HOOC(CH2)4COOH |
2,3-dimethylbutanoic acid | CH3(CHCH3)2COOH | |
3,3-dimethylbutanoic acid | CH3C(CH3)2CH2COOH | |
2-hydroxypropane-1,2,3-tricarboxylic acid | citric acid 3-carboxy-3-hydroxypentanedioic acid 2-hydroxy-1,2,3-propanetricarboxylic acid |
HOC(COOH)((CH2)COOH)2 |
prop-1-ene-1,2,3-tricarboxylic acid | aconitic acid achilleic acid equisetic acid citridinic acid pyrocitric acid |
HOOCCH=C(COOH)CH2COOH |
1-hydroxypropane-1,2,3-tricarboxylic acid | isocitric acid | HOOCCHOHCH(COOH)CH2COOH |
(2E,4E)-hexa-2,4-dienoic acid | sorbic acid | CH3(CH=CH)2COOH |
C7
IUPAC name | Common name | Structural Formula |
heptanoic acid | enanthic acid oenanthic acid n-Heptylic acid n-Heptoic acid |
CH3(CH2)5COOH |
heptanedioic acid | pimelic acid | HOOC(CH2)5COOH |
cyclohexanecarboxylic acid | C6H11COOH | |
benzenecarboxylic acid | benzoic acid carboxybenzene dracylic acid |
C6H5COOH |
2-hydroxybenzoic acid | salicylic acid | HOC6H4COOH |
2,2-dimethylpentanoic acid | CH3(CH2)2C(CH3)2COOH | |
2,3-dimethylpentanoic acid | C2H5(CHCH3)2COOH | |
2,4-dimethylpentanoic acid | CH3(CHCH3)CH2(CHCH3)COOH | |
3,3-dimethylpentanoic acid | C2H5C(CH3)2CH2COOH | |
2-ethylpentanoic acid | C3H7CH(C2H5)COOH | |
3-ethylpentanoic acid | C2H5CH(C2H5)CH2COOH | |
2-methylhexanoic acid | C4H9CH(CH3)COOH | |
3-methylhexanoic acid | C3H7CH(CH3)CH2COOH | |
2,2,3-trimethylbutanoic acid | CH3CH(CH3)C(CH3)2COOH | |
2-ethyl-2-methylbutanoic acid | C2H5C(C2H5)(CH3)COOH | |
2-ethyl-3-
methylbutanoic acid |
CH3CH(CH3)CH(C2H5)COOH |
C8
IUPAC name | Common name | Structural Formula |
octanoic acid | caprylic acid | CH3(CH2)6COOH |
benzene-1,2-dicarboxylic acid | phthalic acid | C6H4(COOH)2 |
benzene-1,3-dicarboxylic acid | isophthalic acid | C6H4(COOH)2 |
benzene-1,4-dicarboxylic acid | terephthalic acid | C6H4(COOH)2 |
2-methylheptanoic acid | C5H11CH(CH3)COOH | |
3-methylheptanoic acid | C4H9CH(CH3)CH2COOH | |
4-methylheptanoic acid | C3H7CH(CH3)C2H4COOH | |
5-methylheptanoic acid | C2H5CH(CH3)C3H6COOH | |
6-methylheptanoic acid | (CH3)2CHC4H8COOH | |
2,2-dimethylhexanoic acid | C4H9C(CH3)2COOH | |
2,3-dimethylhexanoic acid | C3H7[CH(CH3)]2COOH | |
2,4-dimethylhexanoic acid | C2H5CH(CH3)CH2CH(CH3)COOH | |
2,5-dimethylhexanoic acid | CH3CH(CH3)C2H4(CH3)COOH | |
3,3-dimethylhexanoic acid | C3H7C(CH3)2CH2COOH | |
3,4-dimethylhexanoic acid | C2H5[CH(CH3)]2CH2COOH | |
3,5-dimethylhexanoic acid | (CH3)2CHCH2CH(CH3)CH2COOH | |
4,4-dimethylhexanoic acid | C2H5C(CH3)2C2H4COOH | |
4,5-dimethylhexanoic acid | CH3[CH(CH)3]2C2H4COOH | |
5,5-dimethylhexanoic acid | (CH3)3CC3H6COOH | |
2-ethanehexanoic acid | C4H9CH(C2H5)COOH | |
3-ethanehexanoic acid | C3H7CH(C2H5)CH2COOH | |
4-ethanehexanoic acid | C2H5CH(C2H5)C2H4COOH | |
5-ethanehexanoic acid | CH3CH(C2H5)C3H6COOH | |
2-octenoic acid | C5H11CH=CHCOOH | |
3-octenoic acid | C4H9CH=CHCH2COOH | |
4-octenoic acid | C3H7CH=CHC2H4COOH | |
5-octenoic acid | C2H5CH=CHC3H6COOH | |
6-octenoic acid | CH3CH=CHC4H8COOH | |
7-octenoic acid | CH2=CHC5H10COOH |
C9
IUPAC name | Common name | Structural Formula |
nonanoic acid | pelargonic acid 1-octanecarboxylic acid |
CH3(CH2)7COOH |
benzene-1,3,5-tricarboxylic acid | trimesic acid | C6H3(COOH)3 |
(E)-3-phenylprop-2-enoic acid | cinnamic acid trans-cinnamic acid phenylacrylic acid cinnamylic acid 3-phenylacrylic acid (E)-cinnamic acid benzenepropenoic acid isocinnamic acid |
C6H5CH=CHCOOH |
C10
IUPAC name | Common name | Structural Formula |
decanoic acid | capric acid |
CH3(CH2)8COOH |
decanedioic acid | sebacic acid 1,8-octanedicarboxylic acid |
HOOC(CH2)8COOH |
C11
IUPAC name | Common name | Structural Formula |
undecanoic acid | hendecanoic acid | CH3(CH2)9COOH |
C12
IUPAC name | Common name | Structural Formula |
dodecanoic acid | lauric acid dodecylic acid dodecoic acid laurostearic acid fulvic acid 1-undecanecarboxylic acid duodecylic acid |
CH3(CH2)10COOH |
benzene-1,2,3,4,5,6-hexacarboxylic acid | mellitic acid graphitic acid benzenehexacarboxylic acid |
C6(COOH)6 |
C13
IUPAC name | Common name | Structural Formula |
tridecanoic acid | tridecylic acid | CH3(CH2)11COOH |
C14
IUPAC name | Common name | Structural Formula |
tetradecanoic acid | myristic acid | CH3(CH2)12COOH |
C15
IUPAC name | Common name | Structural Formula |
pentadecanoic acid | pentadecylic acid | CH3(CH2)13COOH |
C16
IUPAC name | Common name | Structural Formula |
hexadecanoic acid | palmitic acid | CH3(CH2)14COOH |
C17
IUPAC name | Common name | Structural Formula |
heptadecanoic acid | margaric acid heptadecylic acid |
CH3(CH2)15COOH |
C18
IUPAC name | Common name | Structural Formula |
octadecanoic acid | stearic acid | CH3(CH2)16COOH |
(9Z)-octadec-9-enoic acid | oleic acid (9Z)-octadecenoic acid (Z)-octadec-9-enoic acid cis-9-octadecenoic acid cis-Δ9-octadecenoic acid |
CH3(CH2)7CH=CH(CH2)7COOH |
(9Z,12Z)-octadeca-9,12-dienoic acid | linoleic acid | CH3(CH2)4CH=CHCH2CH=CH(CH2)7COOH |
(9Z,12Z,15Z)-octadeca-9,12,15-trienoic acid | ALA α-linolenic acid cis, cis,cis-9,12,15-octadecatrienoic acid (Z,Z,Z)-9,12,15-octadecatrienoic acid |
CH3CH2CH=CHCH2CH=CHCH2CH=CH(CH2)7COOH |
(6Z,9Z,12Z)-octadeca-6,9,12-trienoic acid | GLA γ-linolenic acid gamolenic acid |
CH3(CH2)4CH=CHCH2CH=CHCH2CH=CH(CH2)4COOH |
(6Z,9Z,12Z,15Z)-octadeca-6,9,12,15-tetraenoic acid | SDA stearidonic acid moroctic acid |
CH3CH2CH=CHCH2CH=CHCH2CH=CHCH2CH=CH(CH2)5COOH |
C19
IUPAC name | Common name | Structural Formula |
nonadecanoic acid | nonadecylic acid | CH3(CH2)17COOH |
C20
IUPAC name | Common name | Structural Formula |
icosanoic acid | arachidic acid arachic acid |
CH3(CH2)18COOH |
(5Z,8Z,11Z)-eicosa-5,8,11-trienoic acid | Mead's acid | CH3(CH2)7CH=CHCH2CH=CHCH2CH=CH(CH2)3COOH |
(5Z,8Z,11Z,14Z)-eicosa-5,8,11,14-tetraenoic acid | AA ARA arachidonic acid |
CH3(CH2)4CH=CHCH2CH=CHCH2CH=CHCH2CH=CH(CH2)3COOH |
(5Z,8Z,11Z,14Z,17Z)-eicosa-5,8,11,14-pentaenoic acid | EPA | CH3CH2CH=CHCH2CH=CHCH2CH=CHCH2CH=CHCH2CH=CH(CH2)3COOH |
C21
IUPAC name | Common name | Structural Formula |
heneicosanoic acid | CH3(CH2)19COOH |
C22
IUPAC name | Common name | Structural Formula |
docosanoic acid | behenic acid | CH3(CH2)20COOH |
(4Z,7Z,10Z,13Z,16Z,19Z)-docosa-4,7,10,13,16,19-hexaenoic acid | DHA cervonic acid |
CH3CH2CH=CHCH2CH=CHCH2CH=CHCH2CH=CHCH2CH=CHCH2CH=CH(CH2)2COOH |
C23
IUPAC name | Common name | Structural formula |
tricosanoic acid | tricosylic acid | CH3(CH2)21COOH |
C24
IUPAC name | Common name | Structural formula |
tetracosanoic acid | lignoceric acid | CH3(CH2)22COOH |
C25
IUPAC name | Common name | Structural formula |
pentacosanoic acid | pentacosylic acid | CH3(CH2)23COOH |
C26
IUPAC name | Common name | Structural formula |
hexacosanoic acid | cerotic acid | CH3(CH2)24COOH |
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