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ChemicalBook--->CAS DataBase List--->585-99-9

585-99-9

585-99-9 Structure

585-99-9 Structure
IdentificationMore
[Name]

MELIBIOSE
[CAS]

585-99-9
[Synonyms]

6-O-ALPHA-D-GALACTOPYRANOSYL-D-GLUCOSE
D-(+)-MELIBIOSE
MELIBIOSE
6-O-.alpha.-galactopyranosyl-D-Glucose
6-o-alpha-d-galactopyranosyl-d-glucos
6-O-α-D-Galactopyranosyl-D-glucose
melibiose, pure
monohydrate
alpha-D-(+)-Melobiose hydrate
ALPHA-D(+)-MELIBIOSE HYDRATE 99+%
Melibiose-H2O
D-Glucose, 6-O-.alpha.-D-galactopyranosyl-
α-d-melibiose hydrate
D-Melibioseanhydrous
2,3,4,5-tetrahydroxy-6-[3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-hexanal
6-O-A-D-GALACTOPYRANOSYL-D-GLUCOPYRANOSE MONOHYDRATE
á-D-Melibiose
D(+)MELIBOSE extrapure
α-D-Melibiose hydrate, 6-α-D-Galactopyranosyl-D-glucopyranose, 6-O-α-D-Galactopyranosyl-D-glucose
[EINECS(EC#)]

209-568-6
[Molecular Formula]

C12H22O11
[MDL Number]

MFCD00168065
[Molecular Weight]

342.3
[MOL File]

585-99-9.mol
Chemical PropertiesBack Directory
[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.
[Appearance]

White powder
[Melting point ]

182 °C (dec.) (lit.)
[alpha ]

+138 - +143° (D/20)(c=1, dil. NH4OH,18hr)(calculated on the dried basis)
[Boiling point ]

774.5±60.0 °C(Predicted)
[density ]

1.68±0.1 g/cm3(Predicted)
[storage temp. ]

Store at RT.
[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
[LogP]

-3.200 (est)
[CAS DataBase Reference]

585-99-9(CAS DataBase Reference)
[EPA Substance Registry System]

Melibiose (585-99-9)
Safety DataBack Directory
[WGK Germany ]

3
[TSCA ]

Yes
[HS Code ]

29400090
Hazard InformationBack Directory
[Chemical Properties]

White powder
[Uses]

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.
[General Description]

Melibiose is a carbon substrate.
[storage]

Store at -20°C
[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.]
Spectrum DetailBack Directory
[Spectrum Detail]

MELIBIOSE(585-99-9)1HNMR
MELIBIOSE(585-99-9)13CNMR
MELIBIOSE(585-99-9)IR1
MELIBIOSE(585-99-9)Raman
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

585-99-9(sigmaaldrich)
[TCI AMERICA]

D-(+)-Melibiose  Monohydrate,>95.0%(GC)(585-99-9)
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