Merck
All Photos(4)

A0278

Sigma-Aldrich

Ácido L-ascórbico

reagent grade

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:

fonte biológica

synthetic

Nível de qualidade

grau

reagent grade

Ensaio

≥98% (with Iodine, titration)

forma

powder

technique(s)

HPLC: suitable

cor

white to light yellow

pH

1.0-2.5 (25 °C, 176 g/L in water)

pf

190-194 °C (dec.)

solubilidade

water: soluble 50 mg/mL

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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This Item
A750633034255564
L-Ascorbic acid reagent grade

Sigma-Aldrich

A0278

L-Ascorbic acid

L-Ascorbic acid reagent grade, crystalline

Sigma-Aldrich

A7506

L-Ascorbic acid

L-Ascorbic acid puriss. p.a., ACS reagent, reag. ISO, Ph. Eur., 99.7-100.5% (oxidimetric)

Sigma-Aldrich

33034

L-Ascorbic acid

L-Ascorbic acid ACS reagent, ≥99%

Sigma-Aldrich

255564

L-Ascorbic acid

grade

reagent grade

grade

reagent grade

grade

ACS reagent, puriss. p.a.

grade

ACS reagent

assay

≥98% (with Iodine, titration)

assay

≥98% ( with iodine, titration)

assay

99.7-100.5% (oxidimetric)

assay

≥99%

form

powder

form

crystalline

form

solid

form

chunks, crystalline powder, crystals, granular

pH

1.0-2.5 (25 °C, 176 g/L in water)

pH

1.0-2.5 (25 °C, 176 g/L in water)

pH

2.1-2.6 (20 °C, 5%)

pH

1.0-2.5 (25 °C, 176 g/L in water)

mp

190-194 °C (dec.)

mp

190-194 °C (dec.)

mp

190-194 °C (dec.)

mp

190-194 °C (dec.)

solubility

water: soluble 50 mg/mL

solubility

water: soluble 50 mg/mL

solubility

water: soluble 176 g/L at 20 °C

solubility

water: soluble 176 g/L at 20 °C

Descrição geral

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. It is a water-soluble vitamin.

Aplicação

L-Ascorbic acid has been used as a standard in high performance liquid chromatography (HPLC) for quantification of L-ascorbic acid.
L-Ascorbic acid may be used as standard in assay for erythrocyte hemolysis mediated by peroxyl free radicals. It may be used for the reduction of graphene oxide sheets.

Ações bioquímicas/fisiológicas

L-Ascorbic acid is an anti-oxidant. L-Ascorbic acid (vitamin C) is important for many enzymatic reactions for maintaining prosthetic metal ions in their reduced forms (for example, Fe2+, Cu+). It protects tissues from oxidative damage by scavenging free radicals. It has mild reductive ability and nontoxic property. It is commonly employed reductant in the laboratory. Colorimetric determination of ascorbic acid in plasma using acid phosphotungstate has been reported.
L-ascorbic acid modified poly(ester urethane)s might facilitate soft tissue regeneration. It also helps in increasing iron absorption by tissues. In addition, it aids in tyrosine metabolism and microsomal drug metabolism.

Atenção

May darken in storage.

Código de classe de armazenamento

11 - Combustible Solids

WGK

WGK 3

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)


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