IUPAC 名称
(2S,3R,4S,5R)-2,3,4,5-tetrahydroxy-6-oxohexanoic acid
描述
Galacturonic acid, also known as D-galacturonate or (2s,3r,4s,5r)-2,3,4,5-tetrahydroxy-6-oxohexanoate, belongs to glucuronic acid derivatives class of compounds. Those are compounds containing a glucuronic acid moiety (or a derivative), which consists of a glucose moiety with the C6 carbon oxidized to a carboxylic acid. Galacturonic acid is soluble (in water) and a weakly acidic compound (based on its pKa). Galacturonic acid can be found in a number of food items such as sunflower, white mustard, okra, and date, which makes galacturonic acid a potential biomarker for the consumption of these food products. Galacturonic acid can be found primarily in feces. Galacturonic acid exists in all living species, ranging from bacteria to humans. 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. 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 .
InChI标识符
InChI=1S/C6H10O7/c7-1-2(8)3(9)4(10)5(11)6(12)13/h1-5,8-11H,(H,12,13)/t2-,3+,4+,5-/m0/s1