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Key Documents

04471

Supelco

(R)-(+)-α-Lipoic acid

analytical standard

Sinônimo(s):

(R)-(+)-1,2-Dithiolane-3-pentanoic acid, (R)-6,8-Dithiooctanoic acid, (R)-6,8-Thioctic acid

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About This Item

Fórmula empírica (Notação de Hill):
C8H14O2S2
Número CAS:
Peso molecular:
206.33
Número MDL:
Código UNSPSC:
85151701
ID de substância PubChem:
NACRES:
NA.24

grau

analytical standard

Nível de qualidade

Ensaio

≥98.0% (HPLC)

atividade óptica

[α]/D +115±5°, c = 1% in ethanol

prazo de validade

limited shelf life, expiry date on the label

técnica(s)

HPLC: suitable
gas chromatography (GC): suitable

pf

48-52 °C (lit.)

aplicação(ões)

cleaning products
cosmetics
food and beverages
personal care

formato

neat

temperatura de armazenamento

2-8°C

cadeia de caracteres SMILES

OC(=O)CCCC[C@@H]1CCSS1

InChI

1S/C8H14O2S2/c9-8(10)4-2-1-3-7-5-6-11-12-7/h7H,1-6H2,(H,9,10)/t7-/m1/s1

chave InChI

AGBQKNBQESQNJD-SSDOTTSWSA-N

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Descrição geral

α-Lipoic acid is an antioxidant which is generally present in plants, animals and many other microorganisms.

Aplicação

α-Lipoic acid has been used as a reference standard for the analysis of α-lipoic acid in human plasma by high performance liquid chromatography coupled to electron capture detector (HPLC-ECD), in various food matrices and dietary supplements by HPLC combined with coulometric electrode array detector (CEAD) as well as electrospray ionization mass spectrometer (ESI-MS).
It may be used as a reference standard for the determination of α-lipoic acid in human urine by isocratic reversed-phase HPLC and in α-lipoic acid capsules by HPLC with chemiluminescence detection.

Embalagem

Bottomless glass bottle. Contents are inside inserted fused cone.

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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Slide 1 of 4

1 of 4

High-performance liquid chromatographic assay for $\alpha$-lipoic acid and five of its metabolites in human plasma and urine.
Teichert, et al.
Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences, 769(2), 269-281 (2002)
Determination of lipoic acid by flow-injection and high-performance liquid chromatography with chemiluminescence detection.
Wolyniec, et al.
Talanta, 96(2), 223-229 (2012)
Determination of free ?-lipoic acid in foodstuffs by HPLC coupled with CEAD and ESI-MS.
Durrani, et al.
Food Chemistry, 120(4), 1143-1148 (2010)
W Witt et al.
Journal of chromatography. B, Biomedical sciences and applications, 705(1), 127-131 (1998-03-14)
A new method for the quantitation of lipoic acid in plasma and tissues based on the selective precolumn derivatization of thiols with the fluorescent label monobromobimane is described. After extraction with diethyl ether, the dithiolane ring of lipoic acid is
Soichiro Satoh et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 854(1-2), 109-115 (2007-04-28)
The simultaneous determination of alpha-lipoic acid (LA) and DHLA (reduced form of LA) was carried out by HPLC with fluorescence detection. DHLA in the sample was first labeled with ABD-F at room temperature for 10 min and then the LA

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