N1-Isopropyl-N2-(4-methoxyphenyl)oxalamide CAS 331264-33-6
| CAS No. | 331264-33-6 |
| Molecular Formula | C12H16N2O3 |
| Molecular Weight | 236.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 236.27 g/mol gives N1-Isopropyl-N2-(4-methoxyphenyl)oxalamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N1-Isopropyl-N2-(4-methoxyphenyl)oxalamide (CAS 331264-33-6), molecular formula C12H16N2O3 and molecular weight 236.27 g/mol, is a CATO reference standard with documented purity and traceability.
N1-Isopropyl-N2-(4-methoxyphenyl)oxalamide (C12H16N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H16N2O3 |
| Molecular Weight | 236.27 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 2025 |
| Nitrogen Atoms | 2 |
Related N Standards
- 6-Isopropyl-2-oxo-1,2,5,6,7,8-hexahydro-1,6-naphthyridine-3-carboxylic acid (CAS 1281483-77-9)
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- Isopropyl 2-aminobenzo[d]thiazole-6-carboxylate (CAS 134949-38-5)
- N-isopropyl-5-(thiophen-2-yl)isoxazole-3-carboxamide (CAS 263890-27-3)
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Recommended Standards
- N1-Benzyl-N2-(2-hydroxypropyl)oxalamide (CAS 429621-94-3)
- n2-Cyclohexyl-5-nitropyridine-2,6-diamine (CAS 73895-40-6)
- N1-(4-Ethylphenyl)-N2-(2-hydroxyethyl)oxalamide (CAS 507463-96-9)
- N-Hydroxyphenanthrene-9-carboximidamide (CAS 885966-97-2)
- 8-(Tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2H-1,4-benzoxazine (CAS 2377610-89-2)
- (2E)-1-(3-Bromophenyl)-3-(2,3-dimethoxyphenyl)prop-2-en-1-one (CAS 358656-12-9)
- 3-(4-Bromophenyl)-5-phenyl-1,2,4-oxadiazole (CAS 65004-19-5)
- 6-Chloro-4-phenyl-3,4-dihydroquinazoline- 2-carboxylic Acid (CAS 88190-77-6)
- 2-(3-Pyridin-4-yl-propyl)-azetidine-2-carboxylic acid amide (CAS 1316218-33-3)
- 2-[4,5-Dimethyl-2-(3-oxazol-2-yl-phenoxymethyl)-cyclohexa-1,4-dienyl]-2-methoxyimino-N-methyl-acetamide (CAS 1230681-67-0)
- 2-(Pyridin-2-yl)isoindoline-1,3-dione (CAS 59208-49-0)
- tert-Butyl 4-(4,5-dihydro-1H-imidazol-2-yl)piperidine-1-carboxylate (CAS 1355334-71-2)
- N-(2-aminoethyl)-4-iodobenzamide hydrochloride (CAS 145343-82-4)
- Endo-38a-Pro-Exenatide trifluoroacetate salt (CAS 1678416-95-9)
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