Molekula
2-Ketoglutaric acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
2-Ketoglutaric acid is a key intermediate in the Krebs cycle, used in biochemical research and metabolic studies. It serves as a substrate in enzymatic assays and is vital in cell culture media formulations. Beyond the laboratory, it is used as a flavoring agent and adjuvant in food formulations and as an ingredient in nutritional supplements. Available with CAS number 328-50-7, molecular formula C5H6O5, and molecular weight 146.10 g/mol. Store at 2 to 8 °C. Signal word: Danger. Molekula supplies 2-Ketoglutaric 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.
Often bought together
Pricing & pack sizes
In stock — same-day dispatch
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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100 g — £35.60 per pack ex VAT · £42.72 inc. VAT
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 | white or almost white crystals or crystalline powder |
| Melting Point | 113°C - 117°C |
| Heavy metals | ≤10ppm |
| Identification | Conforms to reference |
| Loss on Drying | ≤0.5% |
| Assay | ≥98 % |
| Residue on Ignition | ≤0.2% |
| Transmittance | ≥97% |
| Iron (Fe) | ≤20ppm |
| Arsenic (As) | ≤3ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Acid |
For research use only. Not for human use.
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 115.5 °C |
| Boiling Point | 323 °C |
Source: PubChem CID 51 (Human Metabolome Database (HMDB), Joint FAO/WHO Expert Committee on Food Additives (JECFA))
Identification
| Property | Value |
|---|---|
| SKU | 12974102 |
| CAS Number | 328-50-7 |
| IUPAC Name | 2-oxopentanedioic acid |
| EC Number | 206-330-3 |
| Molecular Formula | C5H6O5 |
| Molecular Weight | 146.10 |
| Exact Mass | 146.0215 |
| SMILES | C(CC(=O)O)C(=O)C(=O)O |
| InChIKey | KPGXRSRHYNQIFN-UHFFFAOYSA-N |
| InChI | InChI=1S/C5H6O5/c6-3(5(9)10)1-2-4(7)8/h1-2H2,(H,7,8)(H,9,10) |
| PubChem CID | 51 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2918.30.9000 |
| Tariff Code | 2918300090 |
Safety & GHS
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Corrosive
GHS05
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
- H412 Harmful 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
- P302+P352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- 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, French, German, Italian, Portuguese, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- 2-Oxo-1,5-pentanedioic acid
- 2-oxoglutarate
- 2-oxoglutaric acid
- 2-Oxopentanedioic acid
- a-ketoglutaric acid
- alpha-ketoglutaric acid
- Glutaric acid, 2-oxo-
- oxogluric acid
- Oxoglutaric acid
- Pentanedioic acid, 2-oxo-
Frequently asked questions
What is 2-Ketoglutaric acid used for?
It is primarily used as a metabolic intermediate in the Krebs cycle and as a reagent in biochemical research and cell culture media.
What is the chemical formula and molecular weight of 2-Ketoglutaric acid?
The formula is C5H6O5 with a molecular weight of 146.10 g/mol.
How should 2-Ketoglutaric acid be stored?
It should be stored at 2 to 8 °C to maintain stability and prevent degradation.
What grade is available for 2-Ketoglutaric acid?
It is available in analytical grade, suitable for laboratory and research applications.
Can Molekula supply 2-Ketoglutaric acid in bulk?
Yes, Molekula can supply 2-Ketoglutaric acid in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with an order of 2-Ketoglutaric 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.