| | Identification | More |  | [Name] 
 D-GALACTONO-1,4-LACTONE
 |  | [CAS] 
 2782-07-2
 |  | [Synonyms] 
 D(-)-GALACTONIC ACID GAMMA-LACTONE
 D-GALACTONO-1,4-LACTONE
 D(-)-GALACTONO-GAMMA-LACTONE
 D-GALACTONO-GAMMA-LACTONE
 D-GALACTONO-G-LACTONE
 D-GALACTONOLACTONE
 GALACTONO-1,4-LACTONE, D-
 GAMMA-D-GALACTONOLACTONE
 1,4-D-Galactonolactone
 Galactonic acid, gamma-lactone, D-
 galactonic acid gamma-lactone
 (3R)-3α,4β,5β-Trihydroxy-6β-(hydroxymethyl)-3,4,5,6-tetrahydro-2H-pyran-2-one
 1-Oxo-1-deoxy-D-galactopyranose
 D-Galactonic acid 1,5-lactone
 D-galacto-Hexonic acid 1,4-lactone
 D-Galactonic acid 1,4-lactone
 |  | [EINECS(EC#)] 
 220-484-9
 |  | [Molecular Formula] 
 C6H10O6
 |  | [MDL Number] 
 MFCD00065019
 |  | [Molecular Weight] 
 178.14
 |  | [MOL File] 
 2782-07-2.mol
 | 
 | Safety Data | Back Directory |  | [Safety Statements ] 
 S22:Do not breathe dust .
 S24/25:Avoid contact with skin and eyes .
 |  | [HS Code ] 
 29322090
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 D-Galactono-1,4-lactone was used in carbohydrate research as an elution compound for the purification process of exo-β-D-galactofuranosidase enzyme.
 |  | [Definition] 
 ChEBI: A galactonolactone derived from D-galactonic acid.
 |  | [Purification Methods] 
 Crystallise the lactone from EtOH, aqueous EtOH, MeOH or EtOAc. It is also purified by passage through a column of Amberlite IR-120 (H+ form), and the effluent and washings are then freeze-dried [Wolfrom & Thompson Methods in Carbohydrate Chemistry I 67 1963, Academic Press]. The 5,6-O-isopropylidene-D-galactono-1,4-lactone is purified by chromatography (EtOAc) and has m 165-167o (from EtOH/hexane), and 167.5-168.5o (from Me2CO/*C6H6) [NMR: Copel & Stick Aust J Chem 31 1371 1978.] [Beilstein 18 III/IV 3026, 18/5 V 18.]
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