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CasNo： 22352-19-8
MF： C28H38O19
Packing： 25kgs/drum or as required by customer.
Purity： ≥ 98
Chemical Name: Octaacetyl-beta-maltose;beta-D-Maltose octaacetate;beta-D-Maltopyranose octaacetate;4-O-(2,3,4,6-Tetra-O-acetyl-alpha-D-glucopyranosyl)-beta-D-glucopyranose tetraacetate
Molecular Formula: C28H38O19
Molecular weight: 678.63
CAS No.: 22352-19-8
EC No.: 606-994-8
Molecular Structure:
Specification:
|
Appearance |
Assay, % |
Melting point, ℃ |
Specific rotation, |
Residue on ignition ,% |
|
White powder |
≥ 98 |
155~161 |
+60~+66 |
≤ 0.1 |
Properties: It is White powder, it is insoluble in water and easy to soluble in ethanol, chloroform etc.
It is mainly used in biochemical reaction and used as medicine intermediate.
Storage: Store in a tightly closed container.Store in a cool,dry area.
Package: 25kgs/drum or as required by customer.
Expiration Date: 5 years.
Aryl β-glycopyranosides have been synthe...
Triphenylmethylium perchlorate-catalysed...
1,2,3,6-tetra-O-acetyl-4-O-trityl-β-D-glucopyranose
2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl thiocyanate
trityl isothiocyanate
β-cellobioseoctaacetate
2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl-(1->4)-2,3,6-tri-O-acetyl-β-D-glucopyranosyl acetate
| Conditions | Yield |
|---|---|
|
triphenylmethyl perchlorate; In dichloromethane; for 2h; Ambient temperature;
|
28% 43% |
acetic anhydride
syringic aldehyde
2,3,6,2',3',4',6'-hepta-O-acetyl-α-D-maltosyl bromide
4-acetoxy-3,5-dimethoxybenzaldehyde
1,2,3,6,2',3',4',6'-octa-O-acetylmaltose
3,5-Dimethoxy-4-
| Conditions | Yield |
|---|---|
|
With pyridine; sodium hydroxide; Yield given. Multistep reaction; 1) acetone, r.t., 2) 90 deg C, 50 min.;
|
1,2,3,6-tetra-O-acetyl-4-O-trityl-β-D-glucopyranose
2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl thiocyanate
acetic anhydride
syringic aldehyde
4-nitrophenyl-2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1→4)-2,3,6-tetra-O-acetyl-β-D-glucopyranoside
phenyl 2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1→4)-2,3,6-tri-O-acetyl-α-D-glucopyranoside
phenyl-[O2,O3,O6-triacetyl-O4-(tetra-O-acetyl-β-D-galactopyranosyl)-α-D-glucopyranoside]
O2,O3,O6-Triacetyl-O4-(tetra-O-acetyl-β-D-galactopyranosyl)-D-glucose
(C=1,CHCl3)
