Potassium 2-amino-2-oxoacetate CAS 21141-31-1
| CAS No. | 21141-31-1 |
| Molecular Formula | C2H2NO3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Potassium 2-amino-2-oxoacetate (CAS 21141-31-1), molecular formula C2H2NO3K and molecular weight 127.14 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, an ether linkage, Potassium 2-amino-2-oxoacetate is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 127.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Potassium 2-amino-2-oxoacetate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C2H2NO3 K |
| Molecular Weight | 127.14 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
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- Tert-butyl 9-benzyl-7-oxo-3,9-diazabicyclo[3.3.1]Nonane-3-carboxylate (CAS 926659-00-9)
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