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G4750

Sigma-Aldrich

D-(+)-Gluconic acid δ-lactone

≥99.0%

Synonym(s):
Glucono delta-lactone, δ-Gluconolactone, 1,2,3,4,5-Pentahydroxycaproic acid δ-lactone, D-(+)-Dextronic acid δ-lactone
Empirical Formula (Hill Notation):
C6H10O6
CAS Number:
Molecular Weight:
178.14
Beilstein:
83286
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.25

biological source

microbial

Quality Level

Assay

≥99.0%

form

powder

technique(s)

gas chromatography (GC): suitable

color

white to off-white

mp

160 °C (dec.) (lit.)

solubility

water: soluble

storage temp.

room temp

SMILES string

OC[C@H]1OC(=O)[C@H](O)[C@@H](O)[C@@H]1O

InChI

1S/C6H10O6/c7-1-2-3(8)4(9)5(10)6(11)12-2/h2-5,7-10H,1H2/t2-,3-,4+,5-/m1/s1

InChI key

PHOQVHQSTUBQQK-SQOUGZDYSA-N

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1 of 4

This Item
347425G21641294150
Gluconolactone An oxidation product of glucose by glucose oxidase.

Millipore

347425

Gluconolactone

Gluconolactone meets USP testing specifications

Sigma-Aldrich

G2164

Gluconolactone

Gluconolactone United States Pharmacopeia (USP) Reference Standard

USP

1294150

Gluconolactone

assay

≥99.0%

assay

≥99% (acidimetric)

assay

-

assay

-

form

powder

form

solid

form

crystalline

form

-

technique(s)

gas chromatography (GC): suitable

technique(s)

-

technique(s)

-

technique(s)

-

color

white to off-white

color

white

color

white

color

-

mp

160 °C (dec.) (lit.)

mp

-

mp

160 °C (dec.) (lit.)

mp

160 °C (dec.) (lit.)

General description

D-(+)-Gluconic acid δ-lactone (GDL) is soluble in water and hydrolyzes into gluconic acid spontaneously and homogeneously lowers the pH. Quinoprotein glucose dehydrogenase converts D-glucose to GDL which gradually lowers the pH and transcriptionally controls the prodigiosin production. GDL is commonly used in the food industry to cause gelation of sodium caseinate by acidification. GDL helps to overcome the difficulties and variations of using starter bacterial cultures.

Application

D-(+)-Gluconic acid δ-lactone has been used in the preparation of cold set gels, and hydrogels.

Biochem/physiol Actions

Glucono-d-lactone increased the doubling time and activated enzymes involved in the oxidative pentose phosphate pathway of Saccharomyces cerevisiae.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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