D-Galacturonic acid
IUPAC 名称
2,3,4,5-tetrahydroxy-6-oxohexanoic acid; 2-hydroxy-2-(3,4,5-trihydroxyoxolan-2-yl)acetic acid; 3,4,5,6-tetrahydroxyoxane-2-carboxylic acid
描述
obtained from the hydrolysis prods. of polymers of pectic substances
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. 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.; D-Galacturonic acid is a sugar acid, the oxidized form of D-galactose. It is the main component of pectin, in which it exists as the polymer polygalacturonic acid. -- Wikipedia. D-Galacturonic acid is found in many foods, some of which are guava, yellow wax bean, common pea, and green bean.
异构
OC(C=O)C(O)C(O)C(O)C(O)=O.OC(C1OC(O)C(O)C1O)C(O)=O.OC1OC(C(O)C(O)C1O)C(O)=O
InChI标识符
InChI=1S/3C6H10O7/c7-1-2(8)6(12)13-4(1)3(9)5(10)11;7-1-2(8)4(5(10)11)13-6(12)3(1)9;7-1-2(8)3(9)4(10)5(11)6(12)13/h2*1-4,6-9,12H,(H,10,11);1-5,8-11H,(H,12,13)
键
TYNHVGLYUDYTJD-UHFFFAOYSA-N