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Sugar acid From Wikipedia, the free encyclopedia
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.
This article relies largely or entirely on a single source. (July 2024) |
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IUPAC name
β-D-Galactopyranuronic acid | |
Identifiers | |
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ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.035.495 |
EC Number |
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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).
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