4-O-alpha-D-Glucopyranosyl-D-glucose

Base Information

• Chemical Name: 4-O-alpha-D-Glucopyranosyl-D-glucose
• CAS No.: 69-79-4
• Molecular Formula: C12H22O11
• Molecular Weight: 342.3
• Hs Code.: 1702900090
• European Community (EC) Number: 200-716-5
• Wikipedia: Maltose
• Wikidata: Q27120863
• NCI Thesaurus Code: C68478
• RXCUI: 1311261
• Metabolomics Workbench ID: 165561
• Mol file: 69-79-4.mol

Synonyms:Maltose

Chemical Property of 4-O-alpha-D-Glucopyranosyl-D-glucose

Chemical Property:

• Appearance/Colour: colourless crystals or white powder
• Vapor Pressure: 1.08E-20mmHg at 25°C
• Melting Point: 110 °C
• Refractive Index: n20/D 1.361
• Boiling Point: 667.9 °C at 760 mmHg
• PKA: 12.39±0.20(Predicted)
• Flash Point: 357.8 °C
• PSA: 189.53000
• Density: 1.76 g/cm³
• LogP: -5.39720
• Storage Temp.: 2-8°C
• Solubility.: Very soluble in water; very slightly soluble in cold ethanol (95%); practically insoluble in ether.
• Water Solubility.: 310.3g/L(20 oC)
• XLogP3: -4.7
• Hydrogen Bond Donor Count: 8
• Hydrogen Bond Acceptor Count: 11
• Rotatable Bond Count: 4
• Exact Mass: 342.11621151
• Heavy Atom Count: 23
• Complexity: 382

Purity/Quality:

99% ^*data from raw suppliers

Maltose ^*data from reagent suppliers

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Biological Agents -> Disaccharides
• Canonical SMILES: C(C1C(C(C(C(O1)OC2C(OC(C(C2O)O)O)CO)O)O)O)O
• Isomeric SMILES: C([C@@H]1[C@H]([C@@H]([C@H]([C@H](O1)O[C@@H]2[C@H](O[C@@H]([C@H]([C@H]2O)O)O)CO)O)O)O)O
• Recent ClinicalTrials: Trehalose as add-on Therapy in Bipolar Depression
• Uses: Maltose is used as a nutrient, sweetener, and culture medium. Maltose is a sweetener formed by the enzymatic action of yeast on starch. it consists of two dextrose molecules. maltose dissolves and crystallizes slowly in aqueous solutions, and is less sweet and more stable than sucrose. it is used in combination with dextrose in bread and in instant foods, and is also used in pancake syrups. Nutrient, sweetener, culture media, stabilizer for polysulfides, brewing.

Technology Process of 4-O-alpha-D-Glucopyranosyl-D-glucose

There total 11 articles about 4-O-alpha-D-Glucopyranosyl-D-glucose which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

Sucrose (57-50-1) → D-glucose (50-99-7) + glucan, content of α-(1->4) linkage: 1.5% + leucrose (7158-70-5) + isomaltose (499-40-1) + D-maltose (69-79-4)

Guidance literature:

With Leuconostoc mesenteroides B-1299CB₄ dextransucrase DSRBCB₄, triple mutant S₆₄₂N/E₆₄₃N/V₆₄₄S; calcium chloride; at 28 ℃; pH=5.2; aq. acetate buffer; Enzymatic reaction;

DOI:10.1021/jf104629g

Reference yield:

Sucrose (57-50-1) → D-glucose (50-99-7) + glucan, content of α-(1->4) linkage: 10.9% + leucrose (7158-70-5) + isomaltose (499-40-1) + D-maltose (69-79-4)

Guidance literature:

With Leuconostoc mesenteroides B-1299CB₄ dextransucrase DSRBCB₄ mutant V₅₃₂P/V₅₃₅I/S₆₄₂N/E₆₄₃N/V₆₄₄S; calcium chloride; at 28 ℃; pH=5.2; aq. acetate buffer; Enzymatic reaction;

DOI:10.1021/jf104629g

Reference yield:

→ D-Fructose (57-48-7,18875-34-8) + D-xylose (6763-34-4) + alpha-D-glucopyranose (492-62-6) + α-D-galactopyranose (3646-73-9) + acetic acid (64-19-7,77671-22-8) + Sucrose (57-50-1) + D-maltose (69-79-4)

Guidance literature:

With water; at 145 ℃; for 0.5h; Heating / reflux;

With sulfuric acid; water; at 121 ℃; for 0.5h; Product distribution / selectivity;

upstream raw materials:

panose

Sucrose

β‐cyclodextrin

D-Glucose

Downstream raw materials:

hydrogen cyanide

formic acid

LACTIC ACID

D-sorbitol

Refernces

• 1、 Whistler,Durso. "-". . p. 677. Retrieved 1950.
• 2、 Miranda-Molina, Alfonso,Marquina-Bahena, Silvia,Alvarez, Laura,Lopez-Munguia, Agustin,Castillo, Edmundo. "Regioselective glucosylation of inositols catalyzed by Thermoanaerobacter sp. CGTase". . p. 93 - 101,9. Retrieved 2020/08/20.
• 3、 Kang, Hee Kyoung,Kimura, Atsuo,Kim, Doman. "Bioengineering of Leuconostoc mesenteroides glucansucrases that gives selected bond formation for glucan synthesis and/or acceptor-product synthesis". experimental part. p. 4148 - 4155. Retrieved 2011/10/30.