7658-10-8

Basic information

• Product Name: 6-Deoxy-L-talose
• Synonyms: 6-deoxytalose;L-6dTal;L-Talomethylose
• CAS NO: 7658-10-8
• Molecular Formula: C₆H₁₂O₅
• Molecular Weight: 164.16
• Product Categories: aldehydes;Carbohydrates & Derivatives
• Mol File: 7658-10-8.mol
• Article Data: 43

Chemical Properties

• Melting Point: 123-124°C
• Boiling Point: 399.1°C at 760 mmHg
• Flash Point: 209.3°C
• Appearance: /
• Density: 1.41g/cm³
• Vapor Pressure: 5E-08mmHg at 25°C
• Refractive Index: 1.53
• Storage Temp.: Hygroscopic, -20°C Freezer, Under Inert Atmosphere
• CAS DataBase Reference: 6-Deoxy-L-talose(CAS DataBase Reference)
• NIST Chemistry Reference: 6-Deoxy-L-talose(7658-10-8)
• EPA Substance Registry System: 6-Deoxy-L-talose(7658-10-8)

Safety Data

• Hazardous Substances Data: 7658-10-8(Hazardous Substances Data)

Usage

Description

6-Deoxy-L-talose is a microbial monosaccharide that is found in the cell wall of bacteria such as S. bovis and in the O-specific polysaccharide of LPS in species including E. coli and P. maltophilia. It is also a component of the surface glycopeptidolipids of M. avium.
Used in Organic Synthesis:
6-Deoxy-L-talose is used as a compound in organic synthesis for its unique chemical properties and potential applications in the development of new chemical compounds and materials.

InChI:InChI=1/C6H12O5/c1-3(8)5(10)6(11)4(9)2-7/h2-6,8-11H,1H3/t3-,4-,5+,6-/m1/s1

Upstream product

• 67-56-1 methanol 
• 911649-24-6 methyl-(2,3-anhydro-6-deoxy-α-L-talopyranoside) 
• 124-41-4 sodium methylate 
• 36357-77-4 Talopeptin 
• 68069-80-7 methyl-α-L-fucopyranoside 
• 75735-16-9 C₄₇H₆₁NO₂₇ 
• 15814-59-2 (2S,3S,4S,5S,6R)-2-methoxy-6-methyltetrahydro-2H-pyran-3,4,5-triol 
• 115547-18-7 cleistetroside-4 
• 7512-03-0 methyl 2,3,4-tri-O-benzoyl-6-deoxy-α-D-mannopyranoside 
• 634-74-2 D-rhamnose 
• 3615-41-6 L-Rhamnose 
• 64-17-5 ethanol 
• 6893-65-8 1,2-di-O-isopropylidene-5-O-tosyl-D-xylofuranose 
• 50600-39-0 5-deoxy-5-iodo-1,2-O-isopropylidene-alpha-D-xylofuranose 

Downstream Products

• 634-74-2 D,L-rhamnose 
• 6422-34-0 L-idomethylonic acid 
• 51607-21-7 6-deoxy-D-altritol 
• 2079-46-1 arabino-6-deoxy-[2]hexosulose-bis-phenylhydrazone 
• 20031-16-7 6-deoxy-D-gulono-1,4-lactone 
• 128613-55-8 trifluoroacetylated 6-deoxymannose anti-O-benzyloxime 
• 128613-64-9 trifluoroacetylated 6-deoxymannose syn-O-benzyloxime 
• 620-02-0 5-Methylfurfural 
• 77144-62-8 O³,O⁵;O⁴,O⁶-((Ξ,Ξ)-dibenzylidene)-1-deoxy-D-mannitol 
• 67-47-0 5-hydroxymethyl-2-furfuraldehyde 
• 3615-37-0 D-Fucose 
• 2438-80-4 L-Fucose 
• 50705-55-0 Methyl β-L-rhamnofuranosid 
• 50705-54-9 methyl-α-L-rhamnofuranoside 

Relevant articles and documents

A novel low-molecular-mass pumpkin polysaccharide: Structural characterization, antioxidant activity, and hypoglycemic potential

The novel natural low-molecular-mass polysaccharide (SLWPP-3) from pumpkin (Cucurbia moschata) was separated from the waste supernatant after macromolecular polysaccharide production and purified using a DEAE cellulose-52 column and gel-filtration chromatography. Chemical and instrumental studies revealed that SLWPP-3 with a molecular mass of 3.5 kDa was composed of rhamnose, glucose, arabinose, galactose and uronic acid with a weight ratio of 1: 1: 4: 6: 15, and primarily contained →3,6)-β-D-Galp-(1→, →4)-α-GalpA-(1→(OMe), →4)-α-GalpA-(1→, →2,4)-α-D-Rhap-(1→, →3)-β-D-Galp-(1→, →4)-α-D-Glcp, and →4)-β-D-Galp residues in the backbone. The branch chain passes were connected to the main chain through the O-4 atom of glucose and O-3 atom of arabinose. Physiologically, the ability of SLWPP-3 to inhibit carbohydrate-digesting enzymes and DPPH and ABTS radicals, as well as protect pancreatic β cells from oxidative damage by decreasing MDA levels and increasing SOD activities, was confirmed. The findings elucidated the structural types of pumpkin polysaccharides and revealed a potential adjuvant natural product with hypoglycemic effects.

Novel polysaccharide from Chaenomeles speciosa seeds: Structural characterization, α-amylase and α-glucosidase inhibitory activity evaluation

Purification and structural characterization of a novel polysaccharide fraction from Chaenomeles speciosa seeds were investigated. After hot water extraction and ethanol precipitation, the crude polysaccharide was sequentially purified with Cellulose DEAE-52 and gel-filtration chromatography, and a highly purified polysaccharide fraction (F3) was obtained. The structure of F3 was characterized by high-performance gel permeation chromatography (HPGPC), high performance liquid chromatography (HPLC), ultraviolet-visible (UV), Fourier transform infrared (FT-IR) and nuclear magnetic resonance (NMR) spectrum, together with methylation, scanning electron microscopy (SEM), atomic force microscope (AFM), and Congo-red test analysis. The results indicated that F3 was a homogeneous polysaccharide fraction with a molecular weight of 8.65 × 106 Da, and it was composed of Rha, GlcA, Gal, and Ara in a molar ratio of 6.34:5.73:47.14:40.13. The backbone of F3 was consisted of →3,6)-Galp-(1→, and the side chains of F3 were composed of Araf-(1→, →4)-GlcpA-(1→, →4)-Galp-(1→ and →3)-Rhap-(1→. The hypoglycemic assays demonstrated F3 had good α-amylase and α-glucosidase inhibition activities, and their IC50 values were 6.24 mg/mL and 4.59 mg/mL respectively. Thus, the polysaccharide from Chaenomeles speciose could be applied as a potential natural source in retarding postprandial hyperglycemia effects.

Effect of polyphenols from Vicia faba L on lipase activity and melanogenesis

Two new flavonoid glycosides, kaempferol 3-O-α-L-rhamnopyranosyl (1→6) (3′′-acetyl)-β-D-galactopyranoside 1 and kaempferol 3-O-α-L-arabinopyranosyl-5-O-α-L-rhamnopyranoside 2, along with six known ones 3–8 were isolated from the flowers of Vicia faba L. (Fabaceae). Methanol extract and the isolated compounds were tested against lipase and melanogenesis inhibition activities and resulted in that compound 2 showed 53 and 77% lipase inhibition activity in concentrations of 400 and 800?μg/mL, respectively. For melanogenesis, compounds 2, 3 and 4 exhibited potent melanogenesis inhibition activity where the melanin content in melanoma cells was decreased to be about 57.5, 56 and 61%, respectively, with no obvious melanocytotoxicity. The rest of compounds showed weak to moderate activity. The results of melanogenesis inhibition activity of this study suggested the potential use of Vicia faba flowers as a skin-whitening agent and reveal the flowers to be a rich source of important phytochemicals with antilipase and melanogenesis inhibitory activity.