17296-19-4

Basic information

• Product Name: 6-O-α-D-Galactopyranosyl-D-mannose
• Synonyms: 6-O-α-D-Galactopyranosyl-D-mannose;Epimelibiose;epi-Melibiose
• CAS NO: 17296-19-4
• Molecular Formula: C₁₂H₂₂O₁₁
• Molecular Weight: 342.3
• Mol File: 17296-19-4.mol
• Article Data: 2

Chemical Properties

• Melting Point: 199 °C
• Boiling Point: 774.5±60.0 °C(Predicted)
• Appearance: /
• Density: 1.68±0.1 g/cm3(Predicted)
• PKA: 12.45±0.20(Predicted)
• CAS DataBase Reference: 6-O-α-D-Galactopyranosyl-D-mannose(CAS DataBase Reference)
• NIST Chemistry Reference: 6-O-α-D-Galactopyranosyl-D-mannose(17296-19-4)
• EPA Substance Registry System: 6-O-α-D-Galactopyranosyl-D-mannose(17296-19-4)

Safety Data

• Hazardous Substances Data: 17296-19-4(Hazardous Substances Data)

Usage

Definition

ChEBI: A glycosylgalactose composed of alpha-D-mannopyranose and alpha-D-galactopyranose units.

Upstream product

• 69685-27-4 1,2,3,4-tetra-O-acetyl-6-O-(tetra-O-acetyl-α-D-mannopyranosyl)-β-D-mannopyranose 
• 3458-28-4 D-Mannose 
• 2871-15-0 Phenyl α-D-galactopyranoside 
• 7664-93-9 sulfuric acid 
• 512-65-2 α-D-galactopyranosyl-(1→6)-O-α-D-glucopyranosyl-(1→2)-[α-D-galactopyranosyl-(1→6)-O-β-D-fructofuranoside] 
• 7647-01-0 hydrogenchloride 
• 512-69-6 D-raffinose 
• 31056-63-0 methyl-(O⁶-α-D-galactopyranosyl-β-D-glucofuranoside) 
• 13242-53-0 acetobromomannose 
• 28154-37-2 1,2,3,4-tetra-O-acetyl-β-D-mannopyranose 
• 499-40-1 melibiose 
• 83-87-4 β-D-mannopyranose pentaacetate 

Downstream Products

• 4746-18-3 O⁶-α-D-mannopyranosyl-D-arabino-[2]hexosulose-bis-phenylhydrazone 
• 497-83-6 α-D-galactopyranose-(1→1)-D-mannitol 
• 93978-96-2 O⁶-α-D-galactopyranosyl-D-glucose-(4-nitro-phenylhydrazone) 
• 78-98-8 2-oxopropanal 
• 111188-56-8 O⁶-α-D-Galactopyranosyl-D-fructose 
• 21675-38-7 melibionic acid 
• 1196681-92-1 C₃₈H₅₅N₅O₁₅ 
• 3646-73-9 α-D-galactopyranose 
• 902-54-5 6-O-β-D-galactopyranosyl-D-galactose 
• 187394-28-1 4-nitrophenyl (α-D-galactopyranosyl)-(1->6)-α-D-galactopyranoside 
• 57-48-7 D-Fructose 
• 50-99-7 D-glucose 
• 13382-86-0 manninotriose 
• 59-23-4 D-Galactose 

Relevant articles and documents

Fabaceae polysaccharides. III. Galactomannan from astragalus cicer seeds

Seeds of Astragalus cicer L. (Fabaceae) afforded a galactomannan (5.90% yield of seed mass) of molecular weight 1064 kDa, solutions of which had high viscosity [η] 925.5 mL/g and optical activity [α]D +71.9°. The galactomannan consisted of galactose and mannose units in a 1:1.39 ratio. Physicochemical methods established that the main chain of the polysaccharide consisted of 1,4-β-D-mannopyranose units substituted at 72% of the C-6 positions by single α-D-galactopyranose units. The content of variously substituted galactose mannobiose units Man-Man, (Gal)Man-Man/Man- Man(Gal) and (Gal)Man-Man(Gal) in the galactomannan were 18.7, 19.8, and 61.5%, respectively.