512-66-3

Basic information

• Product Name: xylosucrose
• Synonyms: xylosucrose;beta-D-Fructofuranosyl alpha-D-Xylopyranoside
• CAS NO: 512-66-3
• Molecular Formula: C11H20O10
• Molecular Weight: 312.2705
• Mol File: 512-66-3.mol
• Article Data: 9

Chemical Properties

• Melting Point: 112.0 to 116.0 °C
• Boiling Point: 643.9°C at 760 mmHg
• Flash Point: 343.2°C
• Appearance: /
• Density: 1.74g/cm³
• Vapor Pressure: 2.69E-19mmHg at 25°C
• Refractive Index: 1.644
• PKA: 12.81±0.70(Predicted)
• CAS DataBase Reference: xylosucrose(CAS DataBase Reference)
• NIST Chemistry Reference: xylosucrose(512-66-3)
• EPA Substance Registry System: xylosucrose(512-66-3)

Safety Data

• Hazardous Substances Data: 512-66-3(Hazardous Substances Data)

Usage

InChI:InChI=1/C11H20O10/c12-1-5-7(16)9(18)11(3-13,20-5)21-10-8(17)6(15)4(14)2-19-10/h4-10,12-18H,1-3H2/t4-,5-,6+,7-,8-,9+,10-,11-/m1/s1

Upstream product

• 58-86-6 D-xylose 
• 512-69-6 D-raffinose 
• 87-72-9 D-Xylose 
• 57-50-1 Sucrose 
• 470-23-5 D-fructose 
• 2460-44-8 β-D-xylopyranoside 

Relevant articles and documents

A recombinant levansucrase from Bacillus licheniformis 8-37-0-1 catalyzes versatile transfructosylation reactions

This work disclosed the broad transglycosylation capability of the levansucrase from Bacillus licheniformis 8-37-0-1 for the first time. The levansucrase was firstly purified from the strain 8-37-0-1 and found to be a monomer of ～51 kDa with KETQDYKKSY as the N-terminus. Then, the gene encoding the enzyme was cloned and it contained an ORF of 1449 nucleotides, encoding a 482 amino-acid protein with a predicted 29 amino-acid signal peptide. The deduced mature protein without the signal showed the same N-terminus to the purified enzyme. The mature enzyme was subsequently expressed in Escherichia coli. The recombinant enzyme showed similar biochemical properties to the native one. It produced maximal yield of 7.1 mg/mL levan (Mr 9.6 × 106) from 0.8 M sucrose (pH 6.5) at 40 °C for 24 h in vitro. When using sucrose as the donor, the enzyme displayed a wide range of acceptor specificity and was able to transfer fructosyl to a series of sugar acceptors including hexose, pentose, β- or α-disaccharides, along with the difficult branched alcohols that have not been investigated before. Chemical structures of the resultant products were analyzed by MS and NMR spectra.

Method for synthesizing oligosaccharides and glycosylation

The invention relates to an enzymatic method for synthesizing oligosaccharides, whereby one saccharide group of a sucrose analogue each is transferred onto an acceptor molecule, for example for glycosylating a hydroxyl compound, a saccharide, peptide, or a drug. According to the inventive method, an enzymatic synthesis of β-D-fructofuranosyl-a-D-aldopyranoside is carried out in a first step, and in a second step one of the saccharide groups is enzymatically transferred onto the acceptor molecule.

Biocatalytic and chemical investigations in the synthesis of sucrose analogues

Herein, we report about the synthesis of sucrose analogues, obtained by two different approaches: a chemical and an enzymatic. The one step synthesis of the sucrose analogues with the exo-fructosyltransferase (EC 2.4.1.162) from Bacillus subtilis NCIMB 11871, which transfers the fructosyl residue of the substrate sucrose to the monosaccharide acceptors galactose, mannose, xylose and fucose, has been developed. Effects in the fructosylation by variation of the positions of the hydroxyl-groups in glycopyranoside acceptors have been studied in respect to their acceptor properties. In contrast, the chemical equivalent nonenzymatic organic synthesis of galacto-sucrose and manno-sucrose has been achieved including six synthetic steps.