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D-Xylose

$43

  • Brand : BIOFRON

  • Catalogue Number : BF-D3009

  • Specification : 98%

  • CAS number : 58-86-6

  • Formula : C5H10O5

  • Molecular Weight : 150.13

  • PUBCHEM ID : 644160

  • Volume : 100mg

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Catalogue Number

BF-D3009

Analysis Method

HPLC,NMR,MS

Specification

98%

Storage

2-8°C

Molecular Weight

150.13

Appearance

White crystalline powder

Botanical Source

Solanum nigrum

Structure Type

Carbohydrates

Category

Standards;Natural Pytochemical;API

SMILES

C(C(C(C(C=O)O)O)O)O

Synonyms

(D)-Xylose/D(+)-Xylose/D-Xyluose/aldehydo-D-xylose/d-xylos/XYLOSE,CP/(2R,3S,4R)-2,3,4,5-Tetrahydroxypentanal/D-(+)-Xylose/Xylomed/WOOD SUGAR/XYLOSE-D/Xylose/D-Xylose/Xylo-Pfan/Xylopyranose/D-XYL/Xylose, D-/(+)-Xylose

IUPAC Name

(2R,3S,4R)-2,3,4,5-tetrahydroxypentanal

Density

1.5±0.1 g/cm3

Solubility

Methanol; Water

Flash Point

219.2±23.3 °C

Boiling Point

415.5±38.0 °C at 760 mmHg

Melting Point

148-158 ºC

InChl

InChl Key

WGK Germany

RID/ADR

HS Code Reference

2940000000

Personal Projective Equipment

Correct Usage

For Reference Standard and R&D, Not for Human Use Directly.

Meta Tag

provides coniferyl ferulate(CAS#:58-86-6) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate

PMID

30487522

Abstract

Lignocellulosic biomass, of which D-xylose accounts for approximately 35% of the total sugar, has attracted attention as a future energy source for biofuel. To elucidate molecular mechanism of D-xylose utilization, we determined the crystal structure of D-xylose reductase from Schefferzomyces stipitis (SsXR) at a 1.95 a resolution. We also determined the SsXR structure in complex with the NADPH cofactor and revealed that the protein undergoes an open/closed conformation change upon NADPH binding. The substrate binding pocket of SsXR is somewhat hydrophobic, which seems to result in low binding affinity to the substrate. Phylogenetic tree analysis showed that AKR enzymes annotated with bacterial/archaeal XRs belonged to uncharacterized AKR families and might have no XR function, and yeast/fungi derived enzymes, which belong to the same group with SsXR, can be candidates for XR to increase xylose consumption.

Title

Structural insight into D-xylose utilization by xylose reductase from Scheffersomyces stipitis.

Author

Son HF1,2, Lee SM3, Kim KJ4,5.

Publish date

2018 Nov 28

PMID

25889471

Abstract

Chemistry development of renewable resources is a real challenge. Carbohydrates from biomass are complex and their use as substitutes for fossil materials remains difficult (European involvement on the incorporation of 20% raw material of plant origin in 2020). Most of the time, the transformation of these polyhydroxylated structures are carried out in acidic conditions. Recent reviews on this subject describe homogeneous catalytic transformations of pentoses, specifically toward furfural, and also the transformation of biomass-derived sugars in heterogeneous conditions. To complete these informations, the objective of this review is to give an overview of the structural variety described during the treatment of two monosaccharides (D-Fructose and D-xylose) in acidic conditions in homogeneous phases. The reaction mechanisms being not always determined with certainty, we will also provide a brief state of the art regarding this.

Copyright © 2015 Elsevier Ltd. All rights reserved.

KEYWORDS

Acidic media; Carbohydrates; Conversion of monosaccharides; Dehydration reaction; HMF

Title

Reactivity of D-fructose and D-xylose in acidic media in homogeneous phases.

Author

Fusaro MB1, Chagnault V2, Postel D1.

Publish date

2015 May 29

PMID

32087383

Abstract

The effect of NaCl concentration on the structure of d-xylose in H2O was studied. It was found that NaCl could prolong the equilibrium time between the two main configurations, α-xylopyranose and β-xylopyranose. The proportion of α-xylopyranose was slightly increased in NaCl-H2O solution than that in H2O, and the alteration of NaCl on α-xylopyranose and β-xylopyranose was different. Theoretical calculations demonstrated that NaCl was more favorable to stabilize the structure of α-xylopyranose. Na+ had attraction with O atoms (α: O6; β: O6 and O1), with the outflow of electron from C atom to O atom on the C1-O6 bond, which was beneficial to the transformation between chain form and pyran forms. Cl- had interaction with the hydroxyl groups of xylose. The interaction between xylose and NaCl, was also evidenced by the variation of 35Cl and 23Na NMR spectra. The findings could provide guidance for understanding the conformational change and design of xylose conversion ways. It also provided valuable information for making efficient use of hemicellulose.

Copyright © 2020 Elsevier Ltd. All rights reserved.

KEYWORDS

ATR-IR; Mutarotation; NMR; NaCl; Optical rotation; Xylose

Title

The effect of sodium chloride concentration on the mutarotation and structure of d-xylose in water: Experimental and theoretical investigation.

Author

Li Z1, Luo Y2, Wang X3, Jiang Z4, Xu S1, Hu C5.

Publish date

2020 Mar


Description :

Xylose, a natural product, can be catalyzed into xylulose by xylose isomerase, and it is the key step for anaerobic ethanolic fermentation of xylose.