![Lipoic Acid [R-(+)-Thioctic acid]](/upload/1124/V12281.png)
| Size | Price | Stock | Qty |
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| 500mg |
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| 1g |
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| 2g |
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| 5g |
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| 10g |
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| 25g |
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| Other Sizes |
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Purity: ≥98%
Lipoic Acid, formerly known as R-(+)-alpha-Lipoic acid, is an organosulfur compound derived from octanoic acid. It is necessary for aerobic metabolism and is normally produced by animals. In certain countries, it is marketed as an antioxidant and is produced for use as a dietary supplement. In other countries, it is sold as a pharmaceutical drug.
| Targets |
Human Endogenous Metabolite
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|---|---|
| ADME/Pharmacokinetics |
Metabolism / Metabolites
Paraoxonase (PON1) is a key enzyme in the metabolism of organophosphates. PON1 can inactivate some organophosphates through hydrolysis. PON1 hydrolyzes the active metabolites in several organophosphates insecticides as well as, nerve agents such as soman, sarin, and VX. The presence of PON1 polymorphisms causes there to be different enzyme levels and catalytic efficiency of this esterase, which in turn suggests that different individuals may be more susceptible to the toxic effect of OP exposure. |
| Toxicity/Toxicokinetics |
Toxicity Summary
(R)-lipoic acid is a cholinesterase or acetylcholinesterase (AChE) inhibitor. A cholinesterase inhibitor (or 'anticholinesterase') suppresses the action of acetylcholinesterase. Because of its essential function, chemicals that interfere with the action of acetylcholinesterase are potent neurotoxins, causing excessive salivation and eye-watering in low doses, followed by muscle spasms and ultimately death. Nerve gases and many substances used in insecticides have been shown to act by binding a serine in the active site of acetylcholine esterase, inhibiting the enzyme completely. Acetylcholine esterase breaks down the neurotransmitter acetylcholine, which is released at nerve and muscle junctions, in order to allow the muscle or organ to relax. The result of acetylcholine esterase inhibition is that acetylcholine builds up and continues to act so that any nerve impulses are continually transmitted and muscle contractions do not stop. Among the most common acetylcholinesterase inhibitors are phosphorus-based compounds, which are designed to bind to the active site of the enzyme. The structural requirements are a phosphorus atom bearing two lipophilic groups, a leaving group (such as a halide or thiocyanate), and a terminal oxygen. |
| References | |
| Additional Infomation |
Pharmacodynamics
Lipoic acid (or α-lipoic acid) is able to pass the blood-brain barrier and is putatively used for detoxification of mercury attached to the brain cells. It can mobilise bound mercury into the blood stream as it is a mercaptan (sulfur compound which readily binds to the mercury). In the blood stream, another chelator such as dimercaptosuccinic acid (DMSA) or methylsulfonylmethane (MSM) is used to transfer mercury safely into the urine for excretion. Since DMSA cannot cross the blood-brain barrier, both lipoic acid and DMSA tend to be used together. It is hypothesized that this treatment-along with carnitine, dimethylglycine (DMG), Vitamin B6, folic acid, and magnesium—could be used to treat autism and amalgam poisoning. In this hypothesis, the reason why autism is difficult to treat is that mercury is attached to the brain cells and most medicines and vitamin supplements do not penetrate the blood-brain barrier. However, α-lipoic acid and perhaps vitamin B12 could making it possible for other chelators to remove mercury safely out of the body and could perhaps one day be used as a treatment for autism. Because lipoic acid is related to cellular uptake of glucose and it is both soluble in water and fat, it is being used for treatment in diabetes. It may be helpful for people with Alzheimer's disease or Parkinson's disease. |
| Molecular Formula |
C8H14O2S2
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|---|---|
| Molecular Weight |
206.3256
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| Exact Mass |
206.043
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| Elemental Analysis |
C, 46.57; H, 6.84; O, 15.51; S, 31.08
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| CAS # |
1200-22-2
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| Related CAS # |
Lipoic acid; 1200-22-2
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| PubChem CID |
6112
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| Appearance |
Light yellow to dark brown solid powder
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| Density |
1.2±0.1 g/cm3
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| Boiling Point |
362.5±11.0 °C at 760 mmHg
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| Melting Point |
46-49ºC
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| Flash Point |
173.0±19.3 °C
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| Vapour Pressure |
0.0±1.7 mmHg at 25°C
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| Index of Refraction |
1.562
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| LogP |
2.16
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| Hydrogen Bond Donor Count |
1
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| Hydrogen Bond Acceptor Count |
4
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| Rotatable Bond Count |
5
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| Heavy Atom Count |
12
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| Complexity |
150
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| Defined Atom Stereocenter Count |
1
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| SMILES |
S1[C@@]([H])(C([H])([H])C([H])([H])S1)C([H])([H])C([H])([H])C([H])([H])C([H])([H])C(=O)O[H]
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| InChi Key |
AGBQKNBQESQNJD-SSDOTTSWSA-N
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| InChi Code |
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
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| Chemical Name |
5-[(3R)-dithiolan-3-yl]pentanoic acid
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| Synonyms |
Thiogamma oral; R-(+)-alpha-Lipoic acid; (+)-alpha-Lipoic acid; Lipoate;Verla Lipon; Verla-Lipon; VerlaLipon; Lipoic Acid; Thioctacide T; Thioctic Acid; (R)-5-(1,2-Dithiolan-3-yl)pentanoic acid; Thiogamma Injekt; thioctic acid;
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: (1). This product requires protection from light (avoid light exposure) during transportation and storage. (2). Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture. |
| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
DMSO: ≥ 100 mg/mL (~484.7 mM)
H2O: ~1 mg/mL (~4.9 mM) |
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| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 4.8466 mL | 24.2330 mL | 48.4660 mL | |
| 5 mM | 0.9693 mL | 4.8466 mL | 9.6932 mL | |
| 10 mM | 0.4847 mL | 2.4233 mL | 4.8466 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
| NCT Number | Recruitment | interventions | Conditions | Sponsor/Collaborators | Start Date | Phases |
| NCT03161028 | Active Recruiting |
Drug: Lipoic acid Drug: Placebo |
Multiple Sclerosis | VA Office of Research and Development |
July 1, 2018 | Phase 2 |
| NCT00765310 | Active Recruiting |
Dietary Supplement: Placebo Dietary Supplement: R-alpha lipoic acid |
Atherosclerosis | Oregon State University | April 2009 | Phase 2 Phase 3 |
| NCT00764270 | Active Recruiting |
Dietary Supplement: R-alpha lipoic acid |
Atherosclerosis | Oregon State University | August 2011 | Phase 2 Phase 3 |
| NCT02910531 | Active Recruiting |
Drug: Placebo Dietary Supplement: Alpha lipoic acid |
Cystinuria | Thomas Chi, MD | June 19, 2017 | Phase 2 |
| NCT06131918 | Active Recruiting |
Drug: Resveratrol Drug: Alpha lipoic acid |
Multiple Sclerosis | Khyber Medical University Peshawar | January 9, 2023 | Phase 2 |
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