2-Oxo-2-(p-tolylamino)acetic acid CAS 42868-89-3
| CAS No. | 42868-89-3 |
| Molecular Formula | C9H9NO3 |
| Molecular Weight | 179.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 179.17 g/mol gives 2-Oxo-2-(p-tolylamino)acetic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Oxo-2-(p-tolylamino)acetic acid (CAS 42868-89-3) is a high-purity analytical reference standard with the molecular formula C9H9NO3 and a molecular weight of 179.17 g/mol.
The molecular framework of 2-Oxo-2-(p-tolylamino)acetic acid (C9H9NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Oxo-2-(p-tolylamino)acetic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H9NO3 |
| Molecular Weight | 179.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-Nitro-1-(o-tolyl)ethan-1-one (CAS 71315-64-5)
- 3-(2-Hydroxyethyl)-2,3-dihydro-1,3-benzoxazol-2-one (CAS 26726-75-0)
- 2-Methyl-6-oxo-1,4,5,6-tetrahydrocyclopenta[b]pyrrole-3-carboxylic acid (CAS 844644-07-1)
- 3-(2-Hydroxyphenyl)-1,3-oxazolidin-2-one (CAS 39123-56-3)
- 2-Bromo-1,3-difluoro-5-nitrobenzene (CAS 886762-62-5)
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- Ethyl 4-(4-chlorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylate (CAS 329700-15-4)
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- 2-(3-Bromofuran-2-yl)acetic acid (CAS 1341959-72-5)
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- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
Why CATO?
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