MELIBIOSE
Synonym(s):6-O-α-D -Galactopyranosyl-D -glucose
- CAS NO.：585-99-9
- Empirical Formula: C12H22O11
- Molecular Weight: 342.3
- MDL number: MFCD00168065
- EINECS: 209-568-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2025-01-27 09:38:02
What is MELIBIOSE?
Chemical properties
White powder
The Uses of MELIBIOSE
Melibiose has been used in a study to improve the preparation of benzoylated ethyl 1-thioglycosides. It has also been used in a study to investigate the effect of water plasticization on the molecular mobility and crystallization tendency of amorphous disaccharides.
What are the applications of Application
Melibiose is a carbon substrate
Definition
A disaccharide con- sisting of two glucose units in an alpha (1- 6)glycosidic linkage. It is an effector molecule that permits activation of the lac operon by binding to the repressor molecule.
Definition
A salt that has a single molecule of WATER OF CRYSTALLIZATION, such as sodium carbonate monohydrate, Na2CO3.H2O.
Definition
monohydrate: A crystalline compoundhaving one mole of water permole of compound.
General Description
Melibiose is a carbon substrate.
Purification Methods
Melibiose crystallises as a hydrate from water or aqueous EtOH. The anomer is obtained by recrystallising 1g from a mixture of 0.35mL of H2O and 0.2mL of EtOH. It crystallises easily with m 179o and mutarotates from [] D 20 +166o to +142.3o (220minutes, c 4, H2O). Crystallisation from MeOH gives the anhydrous form which hydrates to the monohydrate in air. The anomer dihydrate m 85-86o mutarotates from [] D 20 +123.5o to +143.1o (c 4, H2O for anhydrous). [Fletcher & Diehl J Am Chem Soc 74 5774 1952, Beilstein 1 7 III/IV 3075, 17/7 V 206.]
Properties of MELIBIOSE
| Melting point: | 182 °C (dec.) (lit.) |
| Boiling point: | 774.5±60.0 °C(Predicted) |
| alpha | +138 - +143° (D/20)(c=1, dil. NH4OH,18hr)(calculated on the dried basis) |
| Density | 1.68±0.1 g/cm3(Predicted) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | H2O: soluble0.1g/mL, clear, colorless |
| form | Crystalline Powder |
| pka | 12.45±0.20(Predicted) |
| color | White |
| optical activity | [α]20/D +137±3°, 10 hr, c = 5% in H2O |
| Water Solubility | Soluble in water at 100mg/ml |
| Merck | 5820 |
| BRN | 93360 |
| Stability: | Hygroscopic |
| CAS DataBase Reference | 585-99-9(CAS DataBase Reference) |
| EPA Substance Registry System | Melibiose (585-99-9) |
Safety information for MELIBIOSE
Computed Descriptors for MELIBIOSE
MELIBIOSE manufacturer
ARRAKIS INDUSTRIES LLP
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