Molekula
DL-alpha-Lipoic acid (DL Thioctic acid)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
DL-alpha-Lipoic acid (DL Thioctic acid) is a sulfur-containing compound used as an antioxidant and dietary supplement. It supports mitochondrial function and is utilized in research and pharmaceutical applications. Available with CAS number 1077-28-7, molecular formula C8H14O2S2, and molecular weight 206.33 g/mol. Stored at ambient temperature. Signal word: Warning. Molekula supplies DL-alpha-Lipoic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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5 g — $58.70 per pack
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25 g — $206.90 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Slightly yellow crystalline powder |
| Melting Point | 60 - 62°C |
| Specific rotation | -1.0° to +1.0° |
| Heavy metals | ≤ 10ppm |
| Identification | Conforms to reference |
| Total plate count | ≤ 1000 CFU/g |
| Loss on Drying | ≤ 0.20% |
| Assay | 99.0 - 101.0% (HPLC) |
| Residue on Ignition | ⩽ 0.10% |
| Particle Size | 100% through 40 mesh |
| Ethyl acetate | ≤ 250ppm |
| Staphylococcus aureus | Absence/g |
| Toluene | ≤ 20ppm |
| Cadmium (Cd) | ≤ 1.0ppm |
| Lead (Pb) | ≤ 3.0ppm |
| Mercury (Hg) | ≤ 0.1ppm |
| Identification (HPLC) | Conforms to requirements |
| Mould & Yeast | ≤ 100 CFU/g |
| Total impurity (HPLC) | ≤ 2.0% |
| Cyclohexane | ≤ 1000ppm |
| Single impurity (HPLC) | ≤ 0.1% |
| E. Coli and Salmonella | Absence/g |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Forms yellowish flakes |
| Melting Point | 47.5-48 °C |
| Solubility (other solvents) | Soluble in methanol, ethanol, diethyl ether and chloroform |
| pKa | pKa = 5.10 |
Source: PubChem CID 864 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 27534819 |
| CAS Number | 1077-28-7 |
| IUPAC Name | 5-(dithiolan-3-yl)pentanoic acid |
| EC Number | 200-534-6 |
| Molecular Formula | C8H14O2S2 |
| Molecular Weight | 206.33 |
| Exact Mass | 206.0435 |
| SMILES | C1CSSC1CCCCC(=O)O |
| InChIKey | AGBQKNBQESQNJD-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H14O2S2/c9-8(10)4-2-1-3-7-5-6-11-12-7/h7H,1-6H2,(H,9,10) |
| PubChem CID | 864 |
| UN Number | UN3077 |
| REACH Code | Y110 |
| HTS Code | 2934999061 |
| Tariff Code | 2934999061 |
Safety & GHS
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Health Hazard
GHS07
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Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H315 Causes skin irritation
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 5-(dithiolan-3-yl)pentanoic acid
- 6,8-Thioctic acid
- alpha-Lipoic acid
- Biletan
- DL-6,8-Thioctic acid
- Thiocacid
- Thioctan
- thioctate
- thioctic acid
- Thioctsan
Frequently asked questions
What is DL-alpha-Lipoic acid used for?
DL-alpha-Lipoic acid is used as a dietary supplement and antioxidant, supporting mitochondrial function and reducing oxidative stress in research and clinical applications.
What is the chemical formula and molecular weight of DL-alpha-Lipoic acid?
The chemical formula is C8H14O2S2 and the molecular weight is 206.33 g/mol.
How should DL-alpha-Lipoic acid be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade of DL-alpha-Lipoic acid is available?
Molekula supplies DL-alpha-Lipoic acid in research grade.
Can Molekula supply DL-alpha-Lipoic acid in bulk?
Yes, Molekula can supply DL-alpha-Lipoic acid in bulk quantities—please contact sales for details.
What documentation comes with an order of DL-alpha-Lipoic acid?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.