Merck
All Photos(4)

A92902

Sigma-Aldrich

Ácido L-ascórbico

99%

Synonym(s):
Ácido L-treoascórbico, Fator antiescorbútico, Vitamina C
Empirical Formula (Hill Notation):
C6H8O6
CAS Number:
Molecular Weight:
176.12
Beilstein:
84272
Número EC:
Número MDL:
ID de substância PubChem:
NACRES:
NA.21

fonte biológica

synthetic

Nível de qualidade

Ensaio

99%

forma

powder

atividade óptica

[α]25/D 19.0 to 23.0°, c = 10% in H2O

cor

white to off-white

pH

1.0-2.5 (25 °C, 176 g/L in water)

pf

190-194 °C (dec.)

solubilidade

water: soluble 176 g/L at 20 °C

SMILES string

OC([C@]([C@@H](O)CO)([H])O1)=C(O)C1=O

InChI

1S/C6H8O6/c7-1-2(8)5-3(9)4(10)6(11)12-5/h2,5,7-10H,1H2/t2-,5+/m0/s1

InChI key

CIWBSHSKHKDKBQ-JLAZNSOCSA-N

Gene Information

human ... SLC23A2(9962)

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1 of 4

This Item
9520995210255564
L-Ascorbic acid 99%

Sigma-Aldrich

A92902

L-Ascorbic acid

L-Ascorbic acid BioUltra, ≥99.5% (RT)

Sigma-Aldrich

95209

L-Ascorbic acid

L-Ascorbic acid puriss. p.a., ≥99.0% (RT)

Sigma-Aldrich

95210

L-Ascorbic acid

L-Ascorbic acid ACS reagent, ≥99%

Sigma-Aldrich

255564

L-Ascorbic acid

biological source

synthetic

biological source

synthetic

biological source

synthetic (Organic)

biological source

-

assay

99%

assay

≥99.5% (RT)

assay

≥99.0% (RT)

assay

≥99%

form

powder

form

powder or crystals

form

powder or crystals (possibly with chunks)

form

chunks, crystalline powder, crystals, granular

color

white to off-white

color

white to off-white

color

white to off-white

color

white

mp

190-194 °C (dec.)

mp

190-194 °C (dec.)

mp

190-194 °C (dec.)

mp

190-194 °C (dec.)

solubility

water: soluble 176 g/L at 20 °C

solubility

H2O: 1 M at 20 °C, clear, colorless

solubility

H2O: 50 mg/mL at 20 °C, clear, almost colorless

solubility

water: soluble 176 g/L at 20 °C

Descrição geral

L-ascorbic acid is used as a food additive, browning inhibitor, flavor stabilizer, dough modifier and color stabilizer. Deficiency of ascorbic acid is associated with scurvy. L-ascorbic acid stimulates immune response and is implicated in the synthesis of collagen, carnitine and neurotransmitters.

Aplicação

L-Ascorbic acid has been used:
  • as a component in osteogenic differentiation medium
  • in MesenCult medium for the differentiation of bone marrow stromal cells
  • as a standard for vitamin C assay
  • to prevent trihalomethanes formation potential (THMFP)

Ações bioquímicas/fisiológicas

L-Ascorbic acid (L-AA) is a widely available and water-soluble compound. L-AA has an ability to inhibit the corrosion of mild steel.
Ascorbic Acid, also known as Vitamin C, is a six-carbon lactone produced by plants and some animal species but not by humans and other primates. Ascorbic acid functions as an enzymatic cofactor for multiple enzymes, serving as an electron donor for monooxygenases and dioxygenases. Ascorbic acid also functions as a powerful antioxidant, particularly in regards to reactive oxygen species.

Código de classe de armazenamento

11 - Combustible Solids

WGK

WGK 1

Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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