D-Galacturonic acid
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| Names | |
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| IUPAC name β-D-Galactopyranuronic acid | |
| Identifiers | |
3D model (JSmol) | |
| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.035.495 |
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PubChem CID | |
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CompTox Dashboard (EPA) | |
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| Properties | |
| C6H10O7 | |
| Molar mass | 194.139 |
| Melting point | 159 °C (318 °F; 432 K) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
d-Galacturonic acid is a sugar acid, an oxidized form of d-galactose. It is the main component of pectin, in which it exists as the polymer polygalacturonic acid.[1] In its open form, it has an aldehyde group at C1 and a carboxylic acid group at C6. Other oxidized forms of d-galactose are d-galactonic acid (carboxylic group at C1) and meso-galactaric acid (mucic acid) (carboxylic groups at C1 and C6). It is also a uronic acid or hexuronic acid. Naturally occurring uronic acids are d-glucuronic acid, d-galacturonic acid, l-iduronic acid and d-mannuronic acid.
References
- ^ Mohnen, D. (2008). "Pectin structure and biosynthesis". Current Opinion in Plant Biology. 11 (3): 266–277. Bibcode:2008COPB...11..266M. doi:10.1016/j.pbi.2008.03.006. PMID 18486536.
