18404-73-4

Basic information

• Product Name: BENZYL 4-O-BETA-D-GALACTOPYRANOSYL-BETA-D-GLUCOPYRANOSIDE
• Synonyms: BENZYL BETA-LACTOSIDE;BENZYL BETA-D-LACTOSIDE;BENZYL 4-O-BETA-D-GALACTOPYRANOSYL-BETA-D-GLUCOPYRANOSIDE;BENZYL B-D-LACTOSIDE;BETA-D-GAL-[1->4]-BETA-D-GLC-1->OCH2PH);benzyl 4-O-B-D-galactopyranosyl-B-D-*glucopyranos
• CAS NO: 18404-73-4
• Molecular Formula: C₂₂H₃₂O₁₁
• Molecular Weight: 432.42
• Mol File: 18404-73-4.mol

Chemical Properties

• Appearance: /
• Storage Temp.: −20°C
• CAS DataBase Reference: BENZYL 4-O-BETA-D-GALACTOPYRANOSYL-BETA-D-GLUCOPYRANOSIDE(CAS DataBase Reference)
• NIST Chemistry Reference: BENZYL 4-O-BETA-D-GALACTOPYRANOSYL-BETA-D-GLUCOPYRANOSIDE(18404-73-4)
• EPA Substance Registry System: BENZYL 4-O-BETA-D-GALACTOPYRANOSYL-BETA-D-GLUCOPYRANOSIDE(18404-73-4)

Safety Data

• WGK Germany: 3
• Hazardous Substances Data: 18404-73-4(Hazardous Substances Data)

Upstream product

• 70223-97-1 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-2,3,6-tri-O-acetyl-β-D-glucopyranosyl bromide 
• 67310-53-6 (2R,3S,4S,5R,6S)-2-(acetoxymethyl)-6-(((2R,3R,4S,5R,6R)-4,5-diacetoxy-2-(acetoxymethyl)-6-(benzyloxy)tetrahydro-2H-pyran-3-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate 
• 3616-19-1 1',2',3',6',2,3,4,6-octa-O-acetyl-β-D-lactose 
• 18404-72-3 benzyl 4-O-β-D-galactopyranosyl-β-D-glucopyranoside 
• 67-64-1 acetone 
• 77-76-9 2,2-dimethoxy-propane 
• 97604-22-3 benzyl 4-O-(4,6-O-isopropylidene-β-D-galactopyranosyl)-β-D-glucopyranoside 

Downstream Products

• 112697-13-9 benzyl 2,3,2'-tri-O-benzyl-3',4'-O-isopropylidene-β-lactoside 
• 59263-35-3 (3aS,4R,6S,7R,7aS)-7-(benzyloxy)-4-((benzyloxy)methyl)-2,2-dimethyl-6-(((2R,3R,4S,5R,6R)-4,5,6-tris(benzyloxy)-2-((benzyloxy)methyl)tetrahydro-2H-pyran-3-yl)oxy)tetrahydro-4H-[1,3]dioxolo[4,5-c]pyran 
• 109923-03-7 benzyl 2-O-benzyl-4-O-(3,4-O-isopropylidene-β-D-galactopyranosyl)-β-D-glucopyranoside 
• 121237-39-6 (2R,3R,4S,5R,6S)-5-(benzyloxy)-2-((benzyloxy)methyl)-4-hydroxy-6-(((2R,3R,4S,5R,6R)-4,5,6-tris(benzyloxy)-2-((benzyloxy)methyl)tetrahydro-2H-pyran-3-yl)oxy)tetrahydro-2H-pyran-3-yl acetate 
• 108399-83-3 benzyl 2,3,2'-tri-O-benzyl-3',4'-O-isopropylidene-6,6'-O-(3,6,9-trioxaundecane,1,11-diyl)-β-lactoside 
• 112697-14-0 benzyl 6,6-di-O-acetyl-2,3,2'-tri-O-benzyl-3',4'-O-isopropylidene-β-lactoside 
• 143537-06-8 C₃₉H₆₀O₁₅ 
• 143536-98-5 2,2-Dimethyl-propionic acid (2R,3R,4S,5S,6R)-2-benzyloxy-6-(2,2-dimethyl-propionyloxymethyl)-5-[(2S,3R,4S,5R,6R)-6-(2,2-dimethyl-propionyloxymethyl)-3,4,5-trihydroxy-tetrahydro-pyran-2-yloxy]-4-hydroxy-tetrahydro-pyran-3-yl ester 
• 101068-01-3 benzyl-2,3,6,2',6'-penta-O-benzyl-3'-O--β-D-lactoside 
• 109923-06-0 benzyl 2,6-di-O-benzyl-4-O-<6-O-benzyl-3,4-O-isopropylidene-2-O-(2,3,4-tri-O-benzyl-α-L-fucopyranosyl)-β-D-galactopyranosyl>-β-D-glucopyranoside 
• 109923-05-9 benzyl 3-O-acetyl-4-O-(2-O-acetyl-6-O-benzyl-3,4-O-isopropylidene-β-D-galactopyranosyl)-2,6-di-O-benzyl-β-D-glucopyranoside 
• 109923-04-8 Acetic acid (3aS,4R,6S,7R,7aS)-6-((2R,3R,4S,5R,6R)-4-acetoxy-2-acetoxymethyl-5,6-bis-benzyloxy-tetrahydro-pyran-3-yloxy)-4-acetoxymethyl-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-7-yl ester 
• 105186-56-9 benzyl 2,6,6'-tri-O-benzyl-3',4'-O-isopropylidene-β-lactoside 
• 96520-23-9 benzyl [methyl (4''',5''',7''',8''',9'''-penta-O-acetyl-β-neuramin)ate]yl-(2'''->3'')-2'',6''-di-O-benzyl-β-galactopyranosyl-(1''->4')-2',3',6'-tri-O-benzyl-β-glucopyranoside 

Relevant articles and documents

Synthesis of lacto-N-tetraose

Human milk oligosaccharides (HMOs) are the third largest macromolecular component of breast milk and offer infants numerous health benefits, most of which stem from the development of a healthy microbiome. Characterization, quantification, and chemical de

4-O-beta-D-Galactopyranosyl-3-O-methyl-D-glucose: a new synthesis and application to the evaluation of intestinal lactase.

4-O-beta-D-Galactopyranosyl-3-O-methyl-D-glucose (1, 3-O-methyl-lactose) has been prepared from benzyl 2,6-di-O-benzyl-4-O-(2,6-di-O-benzyl-3, 4-O-isopropylidene-beta-D-galactopyranosyl)-beta-D-glucopyranoside (5) and from benzyl 2,6-di-O-benzyl-4-O-(2,3,

SYNTHESE DER TETRA- UND TRISACCHARID-SEQUENZEN VON ASIALO-GM1 UND -GM2. LENKUNG DER REGIOSELEKTIVITAET DER GLYCOSIDIERUNG VON LACTOSE

A regioselective β-glycosidation of lactose derivatives unsubstituted at OH-3' and -4' is possible, depending on the catalyst system applied.With silver silicate or silver carbonate as catalyst under hetrogeneous conditions, β-glycosidation occured selectively at the less reactive OH-4'group of the acceptor, whereas with trimethylsilyl triflate or soluble mercury salt as catalyst under homogeneous conditions, it occured almost exclusively at the more reactive OH-3' group.The reactivity of the glycosyl donor, acceptor, and catalyst had to be properly matched for successful regioselective coupling.In this way, the trisaccharide unit of asialo-GM2-ganglioside, O-(2-acetamido-2-deoxy-β-D-galactopyranosyl)-(1--4)-(β-D-galactopyranosyl-(1--4)-D-glucopyranose, and the tetrasaccharide unit of asialo-GM1-ganglioside, O-(β-D-galactopyranosyl)-(1--3)-(2-acetamido-2-deoxy-β-D-galactopyranosyl)-(1--4)-(β-D-galactopyranosyl)-(1--4)-β-D-glucopyranose were synthesized.This new method constitutes a very useful approach in the field of ganglioside synthesis.