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HomeProduct name listMELIBIOSE

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: 2024-11-19 23:02:33
MELIBIOSE Structural

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

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