79355-25-2

Basic information

• Product Name: O-β-D-galactopyranosyl-(1->3)-D-galactitol
• CAS NO: 79355-25-2
• Molecular Weight: 344.316
• Mol File: 79355-25-2.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: O-β-D-galactopyranosyl-(1->3)-D-galactitol(CAS DataBase Reference)
• NIST Chemistry Reference: O-β-D-galactopyranosyl-(1->3)-D-galactitol(79355-25-2)
• EPA Substance Registry System: O-β-D-galactopyranosyl-(1->3)-D-galactitol(79355-25-2)

Safety Data

• Hazardous Substances Data: 79355-25-2(Hazardous Substances Data)

Upstream product

• 13360-52-6 Cellobiose 
• 584-30-5 3-O-β-galactopyranosyl-D-galactose 
• 7732-18-5 water 
• 5965-66-2 LACTOSE 
• 67-56-1 methanol 
• 5965-65-1 lactobionolactone 
• 88862-57-1 allyl O-(4,6-di-O-benzyl-β-D-galactopyranosyl)-(1<*>3)-2,4,6-tri-O-benzyl-α-D-galactopyranoside 
• 107333-59-5 1-propenyl O(4,6-di-O-benzyl-β-D-galactopyranosyl)-(1<*>3)-2,4,6-tri-O-benzyl-α-D-galactopyranoside 
• 106238-74-8 O-(4,6-di-O-benzyl-β-D-galactopyranosyl)-(1<*>3)-2,4,6-tri-O-benzyl-D-galactopyranoside 
• 81713-25-9 2,3-di-O-benzoyl-4,6-di-O-benzyl-α-D-galactopyranosyl chloride 
• 3616-19-1 1,2,3,6-tetra-O-acetyl-4-O-(2,3,4,6-tetra-O-acetyl-α-D-altropyranosyl)-D-glucopyranose 
• 61236-87-1 allyl 2,4,6-tri-O-benzyl-α-D-galactopyranoside 

Downstream Products

• 849585-22-4 LACTIC ACID 
• 37091-07-9 lactitol nonaacetate 
• 230286-11-0 2-azidoethyl β-D-galactopyranosyl-(1->4)-β-D-glucopyranoside 
• 867197-73-7 β-D-galactopyranosyl-(1->4)-(1-deoxy-D-glucityl)-(1->N)-S²-(trityl)cysteamine 
• 5346-71-4 Acetic acid (2R,3S,4R,5R,6R)-4,5-diacetoxy-6-acetoxymethyl-2-[(1R,2R,3S)-2,3,4-triacetoxy-1-((R)-1,2-diacetoxy-ethyl)-butoxy]-tetrahydro-pyran-3-yl ester 

Relevant articles and documents

Method of preparing lacitol monohydrate and dihydrate

The invention relates to the new product lactitol monohydrate and to a method for the production of crystalline lactitol. The crystalline lactitol monohydrate can be obtained bij seeding an aqueous lactitol solution of a special concentration under special conditions causing the lactitol monohydrate to crystallize and recovering the product. From the mother liquor a further amount of lactitol dihydrate can be recovered. Crystalline lactitol dihydrate can be obtained using different special conditions. Lactitolmonohydrate can further be obtained by mixing one part bij weight of an aqueous lactitol solution of a suited concentration with 1 tot 3 parts bij weight of methanol or ethanol and cooling the mixture to 15° tot 25° C.

Hydrolysis of Substrate Analogues Catalysed by β-D-Glucosidase from Aspergillus niger. Part III. Alkyl and Aryl β-D-Glucopyranosides

The hydrolysis of eighteen alkyl and aryl β-D-glucopyranosides and the disaccharides methyl β-cellobioside (reference substrate), cellobitol, methyl β-gentiobioside, and methyl α-C-gentiobioside catalysed by β-D-glucosidase from Aspergillus niger has been studied using 1H NMR spectroscopy and progress-curve enzyme kinetics in both single-substrate and competition experiments.The influence of chain length and stereochemistry of alkyl groups and substitutions of phenyl groups revealed that this enzyme has evolved preferentially to hydrolyse cellobiose despite low aglycone specificity.The implications of steric and polar or non-polar effects, which were shown to be important for the active site interactions on the energetics of the enzymatic activity as inferred from the kinetic experiments, are discussed.

The assembly of oligosaccharides from "standardized intermediates": beta-(1----3)-linked oligomers of D-galactose.

Several 2-O-benzoyl-4,6-di-O-benzyl-3-O-R-alpha-D-galactopyranosyl chlorides, designed as general precursors of beta-linked, interior D-galactopyranosyl residues in oligosaccharides, were tested in a sequential synthesis of the galactotriose beta-D-Galp-(1----3)-beta-D-Galp-(1----3)-D-Gal (19). The chlorides having R = tetrahydro-2-pyranyl and tert-butyldimethylsilyl gave excellent results, whereas those having R = 3-benzoylpropionyl and chloroacetyl were unsatisfactory. An activated disaccharide block (17), having R = 2,3-di-O-benzoyl-4,6-di-O-benzyl-beta-D-galactopyranosyl, was also prepared and tested as a glycosyl donor. The coupling of 17 to 1-propenyl 2-O-benzoyl-4,6-di-O-benzyl-alpha-D-galactopyranoside (14), in the molar ratio 1.13:1, gave 64% of a trisaccharide derivative (18) that could be converted into 19. This latter synthesis of 19 is efficient because all three galactose units are derived from 14 or its immediate precursor.