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Lipoic acid

Lipoic acid  Structure
CAS No.
62-46-4
Chemical Name:
Lipoic acid
Synonyms
Thiotic acid;Thioctic;(R)-LIPOIC ACID;6,8-Thioctic acid;1,2-Dithiolane-3-pentanoic acid;ACID THIOCTIC;α-thioctic acid;6,8-Thioticacid;R-LIPOIC ACID POTASSIUM COMPOUND;5-(1,2-Dithiolan-3-yl)valeriansure
CBNumber:
CB3186930
Molecular Formula:
C8H14O2S2
Molecular Weight:
206.33
MOL File:
62-46-4.mol
MSDS File:
SDS
Modify Date:
2024/7/24 17:31:20

Lipoic acid Properties

Melting point 48-52 °C(lit.)
Boiling point 315.2°C (rough estimate)
Density 1.2888 (rough estimate)
refractive index 1.5200 (estimate)
Flash point >230 °F
storage temp. 4°C, protect from light
solubility Very slightly soluble in water, very soluble in dimethylformamide, freely soluble in methanol.
InChI InChI=1S/C8H14O2S2/c9-8(10)4-2-1-3-7-5-6-11-12-7/h7H,1-6H2,(H,9,10)
InChIKey AGBQKNBQESQNJD-UHFFFAOYSA-N
SMILES S1CCC(CCCCC(O)=O)S1
CAS DataBase Reference 62-46-4(CAS DataBase Reference)
NIST Chemistry Reference Lipoic acid(62-46-4)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H319-H335-H302-H315
Precautionary statements  P264-P270-P301+P312-P330-P501-P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P
WGK Germany  3

Lipoic acid Chemical Properties,Uses,Production

Chemical Properties

Alpha lipoic acid (ALA) is synthesised enzymatically in the mitochondria from octanoic acid and plays a critical role in mitochondrial energy metabolism. ALA presents as two enantiomers: the R-(+) enantiomer, which is widely present in nature and is biologically active, and the S-(-) enantiomer, which is often included in synthetic-based ALA supplements but is believed to have limited biological activity.
Formulations includes:
R-alpha lipoic acid capsules, tablets, powders or drops
Racemic mixture of R- and S- alpha lipoic acid enantiomers in capsules, tablets, powders or drops
Intravenous administration of R-alpha lipoic acid

History

Alpha Lipoic Acid (ALA) was discovered in 1951. It is a sulfur-containing coenzyme, and when it was first isolated and studied, its main function was thought to be in the Krebs Cycle.
In 1988, ALA was discovered to be a potent antioxidant, and is active in both fat- and watersoluble regions of the cell.

Uses

α-lipoic acid (ALA, thioctic acid) is an organosulfur component produced from plants, animals, and humans. It has various properties, among them great antioxidant potential and is widely used as a racemic drug for diabetic polyneuropathy-associated pain and paresthesia. It has been used in alternative medicine as a possibly effective aid in weight loss, treating diabetic nerve pain, healing wounds, lowering blood sugar, improving skin discoloration caused by vitiligo, and decreasing complications of coronary artery bypass graft (CABG) surgery.
Alpha Lipoic Acid 600 mg 45 Tablets
Alpha Lipoic Acid 600 mg | 45 Tablets

Definition

ChEBI: Lipoic acid is a heterocyclic thia fatty acid comprising pentanoic acid with a 1,2-dithiolan-3-yl group at the 5-position. It belongs to a vitamin of the vitaminB complex. Lipoic acid is one of thecoenzymes involved in the decarboxylationof pyruvate by the enzymepyruvate dehydrogenase. Goodsources of lipoic acid include liverand yeast.

Biological Functions

Lipoic acid is a cofactor for five enzymes or classes of enzymes: pyruvate dehydrogenase, a-ketoglutarate dehydrogenase, the glycine cleavage system, branched chain keto acid dehydrogenase, and the alpha-oxo(keto)adipate dehydrogenase. The first two are critical to the citric acid cycle. The GCS regulates glycine concentrations.

Side effects

Alpha-lipoic acid is generally considered safe with little to no side effects. In some cases, people may experience mild symptoms like nausea, rashes, or itching.

Structure and conformation

Lipoic acid contains two sulfur atoms (at C6 and C8) connected by a disulfide bond and is thus considered to be oxidized although either sulfur atom can exist in higher oxidation states.The carbon atom at C6 is chiral and the molecule exists as two enantiomers (R)-(+)-lipoic acid (RLA) and (S)-(-)-lipoic acid (SLA) and as a racemic mixture (R/S)-lipoic acid (R/S-LA).

Global( 494)Suppliers
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Lipoic acid Spectrum

5-(dithiolan-3-yl)pentanoic acid 6,8-Thiocticacid 6,8-Thiotic acid 6-Thioctic acid 6-Thiocticacid 6-Thiotic acid 6-Thioticacid Acetate-replacing factor ThiocticAcid(AlphaLipoicAcid) Dl-Alpha-LipoicAcid99% PoassiumR-Lipoate 5-(1,2-DITHIOLAN-3-YL)VALERIC ACID/ALPHA LIPOIC ACID THIOCITIC ACID/DL-THIOCTIC ACID 5-(1,2-Dithiolan-3-yl)valeric acid Lipoic acid Thioci acid 5-(1,2-Dithiolan-3-yl)valerianic acid 5-(Dihydro-3H-1,2-dithiol-3-yl)pentanoic acid Thioctic acid API DL-Alpha lipoic Acid(Thioctic Acid) Acetate-replacingfactor alpha-Liponsaeure alpha-Liponsaeure (German) Biletan (R)-Lipoic Acid Potassium R enantiomer of alpha-lipoic acid D-THIOCTIC ACID Heparlipon Liposan Lipothion Protogen A Pyruvate oxidation factor Thioctacid Thioctidase Thioctsan Thioktsaeure Thiooctanoic acid Thiooctanoicacid Tioctacid Tioctidasi Tioctidasi acetate replacing factor Tioctidasiacetatereplacingfactor 5-[3-(1,2-dithiolanyl)]pentanoic acid Thiocitic Acid Nano Liposomal Alpha lipoic acid BioaActive ALA BioActive Alpha lipoic acid NanoActive Alpha lipoic acid Soluble ALA Soluble alpha lipoic acid Nanoactive ALA 5-[(3R)-3-dithiolanyl]pentanoate Nano Liposomal ALA Α-LIPOIC ACID DL-Α-lipoic acid lipoicaci Lipoic acid USP/EP/BP α-thioctic acid-API (+)-Thioctic acid