Polygalacturonic acid

CAS NO.：25990-10-7
Empirical Formula: (C6H10O7)x
Molecular Weight: 194.14
MDL number: MFCD00131972
EINECS: 211-682-6
Update Date: 2026-09-12 18:56:21

What is Polygalacturonic acid?

The Uses of Polygalacturonic acid

Polygalacturonic Acid is found in ripe fruits and some vegetables and is a degradation product of pectin in plants.

The Uses of Polygalacturonic acid

Polygalacturonic acid may be used to identify, differentiate and characterize plant cell wall degrading polygalacturonase(s) from fungi.

What are the applications of Application

Polygalacturonic acid is a reagent which sequesters metal ions and produces gels that can be used for the production of biomolecules

Definition

ChEBI: D-galactopyranuronic acid is the pyranose form of D-galacturonic acid It is a conjugate acid of a D-galactopyranuronate.

General Description

Polygalacturonic acid is composed of galacturonic acid unit arranged as a long polymer chain. Methyl esters of polygalacturonic acid forms pectin.

Biochem/physiol Actions

In land plants, polygalacturonic acids are major components of cell wall polysaccharides (pectins). Bound polygalacturonase-inhibiting peptides (PGIP) protect pectin from degradation by fungal polygalacturonases.

Properties of Polygalacturonic acid

Melting point:	60～61℃
storage temp.	Refrigerator
solubility	aqueous NaOH: 1%, clear to hazy
form	Solid
color	Pale Beige
Water Solubility	Soluble in water.
Sensitive	Hygroscopic
EPA Substance Registry System	Galacturonic acid, homopolymer (25990-10-7)

Safety information for Polygalacturonic acid

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection.