beta-D-Galactopyranose

HCID 439353CAS 7296-64-2

Grundinformationen

Standard-SMILES
OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@H]1O
InChIKey
WQZGKKKJIJFFOK-FPRJBGLDSA-N
Summenformel
C6H12O6
Durchschnittliche Molmasse
180,16 g/mol
Monoisotopische Masse
180,0633881

Namen und Bezeichner

Bevorzugter Name
beta-D-Galactopyranose
IUPAC
(2R,3R,4S,5R,6R)-6-(hydroxymethyl)oxane-2,3,4,5-tetrol
Englischer Name
.beta.-D-Galactopyranose
Summenformel
C6H12O6
Molmasse
180.16

Namen und Synonyme

beta-D-galactosebeta-D-galactopyranose7296-64-2beta-Galactose(2R,3R,4S,5R,6R)-6-(hydroxymethyl)oxane-2,3,4,5-tetrolRQ6K52J67ACHEBI:27667DTXSID001015884RefChem:6900GlyTouCan:G65889KEDTXCID701474039G65889KE
Weitere Namen anzeigen
β-D-Galactoseβ-D-galactopyranose-β-D-Galactose.beta.-D-Galactopyranose(2R,3R,4S,5S,6R)-6-(hydroxymethyl)oxane-2,3,4,5-tetrol
b-D-Galactosebeta-D-Galbeta-D-GalactosideGalactitol,1,5-anhydro-1-C-phenyl-9031-11-2CHEMBL300520beta-Galactosidase(2R,3R,4S,5R,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol

Datenbank-Bezeichner

CAS
7296-64-2、9031-11-2
PubChem CID
439353
DTXSID
DTXSID001015884
ChEMBL
CHEMBL300520
ChEBI
CHEBI:27667
UNII
RQ6K52J67A
EC Number
232-864-1
Nikkaji
J292.886H

Eigenschaften

Berechnete Struktureigenschaften

XLogP
-2,6
Polarare Oberfläche (TPSA)
110 Ų
H-Brücken-Donoren
5
H-Brücken-Akzeptoren
6
Frei drehbare Bindungen
1
Schwere Atome
12

Experimentelle und physikochemische Eigenschaften

SolubilitySlightly soluble
Isoelectric Point4.5
Physical Description · 2 Einträge

Powder; [Sigma-Aldrich MSDS]

Solid

Physikochemische Eigenschaften

Schmelzpunkt
179 · 179-179.5 °C
Siedepunkt
410.8 · 410.8±45.0 °C(Predicted)
Dichte
1.732 · 1.732±0.06 g/cm3(Predicted)
storage temp.
Hygroscopic, Refrigerator, under inert atmosphere
Löslichkeit
Water (Slightly)
Aggregatzustand
Solid

Sicherheit und Regulatorisches

GHS-Klassifizierung

GHS Classification · 5 Einträge

Danger

H334 (99.9%): May cause allergy or asthma symptoms or breathing difficulties if inhaled [Danger Sensitization, respiratory]

P233, P260, P271, P284, P304+P340, P342+P316, P403, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 1506 reports by companies from 4 notifications to the ECHA C&L Inventory.;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Gefahrenhinweise

Regulatory Information · 3 Einträge

Chemical: Galactosidase, .beta.-

Galactosidase, .beta.-: Does not have an individual approval but may be used under an appropriate group standard

.beta.-D-Galactopyranose: Does not have an individual approval but may be used under an appropriate group standard

Other Safety InformationIMAP assessments - Galactosidase, .beta.-: Environment tier I assessment
Hazards SummaryMay cause irritation; May cause allergic reactions in sensitive individuals; [Sigma-Aldrich MSDS] See ENZYMES.
Hazard Classes and CategoriesResp. Sens. 1 (99.9%)

Regulatorische Informationen

Regulatory Information · 3 Einträge

Chemical: Galactosidase, .beta.-

Galactosidase, .beta.-: Does not have an individual approval but may be used under an appropriate group standard

.beta.-D-Galactopyranose: Does not have an individual approval but may be used under an appropriate group standard

Chemie und Industrie

Pharmakologische Informationen

ATC Code · 2 Einträge

A - Alimentary tract and metabolism;A09 - Digestives, incl. enzymes;A09A - Digestives, incl. enzymes;A09AA - Enzyme preparations;A09AA04 - Tilactase

QA - Alimentary tract and metabolism;QA09 - Digestives, incl. enzymes;QA09A - Digestives, incl. enzymes;QA09AA - Enzyme preparations;QA09AA04 - Tilactase

Protein BindingTilactase is not absorbed and thus the plasma protein binding is not possible.
Pharmacodynamics · 1 Eintrag

The use of a single oral administration of tilactase has been shown to be highly effective in decreasing the symptoms and hydrogen excretion of hypolactasia in tests of lactose H(2)-breath. The analysis has shown a decrease of approximately 80% in both malabsorbers and intolerants.The administration of tilacatase also decreases the presence of bloating and flatus.

Mechanism of Action · 1 Eintrag

Lactose is the primary disaccharide found in dairy products. Tilactase is a type of lactase which is the enzyme that is in charge of the breakdown of lactose to glucose and galactose which can be used by the body. Basically, tilactase acts by replacing the missing lactase in the body and allows avoidance of the reach of lactose to the small intestine and the normal bacteria and thus, preventing the symptoms of the lactose intolerance. Once tilactase has metabolized the lactose, the metabolism products are reabsorbed by the normal process of digestion.

Biological Half-LifeTilactase half-life at 35ºC is registered to be 123.77 min. This half-life can be affected by temperature in an inversely proportional manner.
Metabolism/MetabolitesTilactase is degraded by the stomach acid and by the normal flora bacterial metabolism.

Verwendung und Herstellung

Uses · 1 Eintrag

A group of enzymes that catalyzes the hydrolysis of terminal, non-reducing beta-D-galactose residues in beta-galactosides. Deficiency of beta-Galactosidase A1 may cause GANGLIOSIDOSIS, GM1. [ChemIDplus] Available commercially as a catalyst to hydrolyze milk lactose into glucose and galactose; [REPROTOX]

Anwendungen

Verwendenβ-D-Galactose s the beta anomer of D-Galactose (G155250), the C-4 epimer of Glucose (G595000). D-Galactose is found in milk and sugar beets as well as being synthesized by the body.

Vor- und nachgelagerte Produkte

Anbieter50 Anbieter

国药集团化学试剂有限公司86-21-63210123 · [email protected]
北京华美互利生物化工010-56205725 · [email protected]
郑州阿尔法化工有限公司+86-18530059196 · [email protected]
上海阿拉丁生化科技股份有限公司400-6206333 13167063860 · [email protected]
上海康朗生物科技有限公司021-61998208 18217752821 · [email protected]

Ergänzende Hinweise

DefinitionChEBI: A D-galactopyranose having beta-configuration at the anomeric centre.

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