| EC Number | 206-330-3 |
|---|---|
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
| Beilstein/REAXYS Number | 1705689 |
| MDL number | MFCD00004165 |
| InChI | 1S/C5H6O5/c6-3(5(9)10)1-2-4(7)8/h1-2H2,(H,7,8)(H,9,10) |
| InChI key | KPGXRSRHYNQIFN-UHFFFAOYSA-N |
| SMILES string | OC(=O)CCC(=O)C(O)=O |
| grade | analytical standard |
| assay | 99.0-101.0% (T) |
| shelf life | limited shelf life, expiry date on the label |
| application(s) | clinical testing |
| format | neat |
| storage temp. | 2-8°C |
Answer:It contains 50 mg of neat α-ketoglutaric acid analytical standard. The larger pack supports multiple calibration solution preparations and repeated analytical sequences.
Answer:Yes. This grade is identified as an analytical standard for reference preparation and calibration. A general laboratory reagent may not carry the same intended use or documentation.
Answer:The compound is used as a reference in validated GC-MS and LC-based assays, including methods for biological and food samples. Sample preparation and detector configuration depend on the selected method.
Supelco α-ketoglutaric acid analytical standard is a neat reference material for quantifying 2-oxoglutaric acid by chromatography and mass spectrometry. The 50 mg package contains the same analytical-standard grade offered in a smaller 10 mg size, allowing additional stock-solution preparation for larger validation exercises, calibration sequences, or repeated metabolomics experiments. α-Ketoglutaric acid has the formula C5H6O5, molecular weight 146.10 g/mol, and CAS number 328-50-7. It is an endogenous intermediate of the tricarboxylic acid cycle and is studied in food, biological fluids, and metabolite profiling applications. An assay specification of 99.0–101.0% by titration supports its use as a defined reference material. Store at 2–8°C and follow the labeled shelf life. Analytical standards should be prepared in compatible solvents at concentrations appropriate for instrument sensitivity, and matrix-matched quality controls may be needed for quantitative measurements in plasma, urine, or food extracts.
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