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.

CAS：685-73-4
中文别名：
英文别名：galactouronic acid;D-GALACTURONATE;GALACTURONATE;galaturonate;GALACTURONIC ACID,D;D-Galactopyranuronic acid;A-D-GALACTURONIC ACID;D-galaturonate;D-Galacturonic acid;
分子式：C6H10O7
分子量：194.139
精确质量：194.043
Psa：135.29
Logp：-3.2865

EINECS号：211-682-6

密度：1.748g/cm3
沸点：553.4ºC at 760 mmHg
闪点：302.6ºC
折射率：1.591

海关编码：2918990090