Examples
| Common name | IUPAC name | Chemical formula | Structural formula | pKa1 | pKa2 | |
|---|---|---|---|---|---|---|
| Oxalic acid | ethanedioic acid | HOOC-COOH | 1.27 | 4.27 | ||
| Malonic acid | propanedioic acid | HOOC-(CH2)-COOH | 2.85 | 5.70 | ||
| Succinic acid | butanedioic acid | HOOC-(CH2)2-COOH | 4.21 | 5.41 | ||
| Glutaric acid | pentanedioic acid | HOOC-(CH2)3-COOH | 4.34 | 5.41 | ||
| Adipic acid | hexanedioic acid | HOOC-(CH2)4-COOH | 4.41 | 5.41 | ||
| Pimelic acid | heptanedioic acid | HOOC-(CH2)5-COOH | 4.50 | 5.43 | ||
| Suberic acid | octanedioic acid | HOOC-(CH2)6-COOH | 4.62 | 5.41 | ||
| Azelaic acid | nonanedioic acid | HOOC-(CH2)7-COOH | 4.54 | 5.41 | ||
| Sebacic acid | decanedioic acid | HOOC-(CH2)8-COOH | ||||
| undecanedioic acid | HOOC-(CH2)9-COOH | |||||
| dodecanedioic acid | HOOC-(CH2)10-COOH |
| Common name | IUPAC name | Chemical formula | Structural formula |
|---|---|---|---|
| (Ortho-)Phthalic acid | benzene-1,2-dicarboxylic acid o-phthalic acid |
C6H4(COOH)2 | |
| Isophthalic acid | benzene-1,3-dicarboxylic acid m-phthalic acid |
C6H4(COOH)2 | |
| Terephthalic acid | benzene-1,4-dicarboxylic acid p-phthalic acid |
C6H4(COOH)2 |
| Type | Common name | IUPAC name | Chemical formula | Structural formula |
|---|---|---|---|---|
| Monounsaturated: two isomeric forms: cis and trans | Maleic acid (cis form) and Fumaric acid (trans form) | (Z)-Butenedioic acid and (E)-Butenedioic acid | HO2CCH=CHCO2H | |
| Glutaconic acid | Pent-2-enedioic acid | HO2CCH=CHCH2CO2H | ||
| Traumatic acid | Dodec-2-enedioic acid | HO2C(CH2)8CH=CHCO2H | ||
| Diunsaturated: three isomeric forms: trans,trans, cis,trans and cis,cis | Muconic acid | (2E,4E)-Hexa-2,4-dienedioic acid | HO2CCH=CHCH=CHCO2H |
Read more about this topic: Dicarboxylic Acids
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