40307-13-9

Basic information

• Product Name: tri-galacturonic acid
• CAS NO: 40307-13-9
• Molecular Weight: 546.393
• Mol File: 40307-13-9.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: tri-galacturonic acid(CAS DataBase Reference)
• NIST Chemistry Reference: tri-galacturonic acid(40307-13-9)
• EPA Substance Registry System: tri-galacturonic acid(40307-13-9)

Safety Data

• Hazardous Substances Data: 40307-13-9(Hazardous Substances Data)

Upstream product

• 40307-14-0 α-D-GalpA-(1->4)-α-D-GalpA-(1->4)-α-D-GalpA-(1->4)-D-GalpA 
• 40386-95-6 α-D-GalpA-(1->4)-α-D-GalpA-(1->4)-α-D-GalpA-(1->4)-α-D-GalpA-(1->4)-α-D-GalpA-(1->4)-D-GalpA 
• 40386-94-5 α-D-GalpA-(1->4)-α-D-GalpA-(1->4)-α-D-GalpA-(1->4)-α-D-GalpA-(1->4)-D-GalpA 

Downstream Products

• 902141-54-2 di(D-galactosiduronic) acid 
• 489-91-8 D-galacturonic acid 
• 6918-42-9 (2S,3R,4S,5R)-4-[(2R,3R,4S,5R,6R)-3,4-Dihydroxy-6-hydroxymethyl-5-((2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-2-yloxy]-hexane-1,2,3,5,6-pentaol 

Relevant articles and documents

Large-scale preparation of α-D-(1→4)-oligogalacturonic acids from pectic acid

An efficient and inexpensive method for large-scale preparation of α-D-(1→4)-oligogalacturonic acids (oligo-GalA), up to DP 5, from pectic acid is described. Pectic acid was digested with a commercially available pectinase to yield a mixture of oligo-GalA, which was effectively separated by a combination of low-pressure - size-exclusion chromatography based on ion-exchange chromatography to obtain pure oligo-GalA of DP 2-5.

THE MODE OF ACTION OF THE ISOLATED FORM OF TOMATO ENDO-D-GALACTURONANASE

The mode of action of the isolated form of tomato endo-D-galacturonanase of molecular weight close to 50 000 was investigated with oligo-D-galactosiduronic acids of polymerization degree 2 - 7 and their derivatives the terminal aldehyde group of which was reduced.The rate of hydrolysis,catalysed by this enzyme decreased with the shortening the chain length of oligo-D-galactosiduronates used; di(D-galactosiduronic) acid was not hydrolyzed by this enzyme at all.Tri(D-galactosiduronic) acid was cleaved into monomer and dimer, tetra(D-galactosiduronic) acid was alternatively cleaved into monomer and trimer, as well as into two dimers.The previously proposed conception that the binding site of the tomato endo-D-galacturonanase contains three subsites and that the catalytic groups are localized close to the first bond from the reducing end of the substrate segment bound in the complex were proved.The mode of hydrolysis of the reduced oligomers is in favour of the mentioned conception.