3-Isopropyl-N-methylisoxazole-5-carboxamide CAS 126243-22-9
| CAS No. | 126243-22-9 |
| Molecular Formula | C8H12N2O2 |
| Molecular Weight | 168.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 168.19 g/mol gives 3-Isopropyl-N-methylisoxazole-5-carboxamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Isopropyl-N-methylisoxazole-5-carboxamide (CAS 126243-22-9) is a high-purity analytical reference standard with the molecular formula C8H12N2O2 and a molecular weight of 168.19 g/mol.
Based on its molecular formula C8H12N2O2, 3-Isopropyl-N-methylisoxazole-5-carboxamide contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 168.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H12N2O2 |
| Molecular Weight | 168.19 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 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Nitrogen Atoms | 2 |
Related Isopropyl Standards
- Methyl 1-isopropyl-1h-pyrazole-5-carboxylate (CAS 1006319-17-0)
- 1-Isopropyl-5-methyl-1H-pyrazole-4-carboxylic acid (CAS 1007541-94-7)
- 3-Isopropyl-1-methyl-1H-pyrazole-4-carboxylic acid (CAS 113100-52-0)
- 5-Isopropyl-3-methyl-1H-pyrazole-4-carboxylic acid (CAS 1234177-05-9)
- 2-(1-Isopropyl-1h-pyrazol-5-yl)acetic acid (CAS 1260658-80-7)
- 1-Isopropyl-1H-pyrazole-3-acetic Acid (CAS 1260658-97-6)
- Methyl 1-isopropyl-1H-pyrazole-4-carboxylate (CAS 1314965-56-4)
- 5-Isopropyl-4-methyl-1H-pyrazole-3-carboxylic acid (CAS 1341327-85-2)
Recommended Standards
- 3-Methyl-N-(propan-2-yl)-1,2-oxazole-5-carboxamide (CAS 126243-11-6)
- 2-(Hydroxymethyl)-6-(propan-2-yl)pyrimidin-4-ol (CAS 1263206-60-5)
- N-(tert-Butyl)isoxazole-5-carboxamide (CAS 126243-10-5)
- 3-(1,5-Dimethyl-1H-pyrazol-3-yl)propanoic acid (CAS 1267133-90-3)
- 5-methyl-2-(methylamino)benzaldehyde (CAS 70128-09-5)
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- 4-(4-METHOXYPHENYLSULFANYL)PIPERIDINE HCL (CAS 1172883-91-8)
- 4-(2,5-Dimethylphenyl)-2-methyl-1-butene (CAS 951891-90-0)
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- 4-Isobutoxypyrimidine-2-carboxylic acid (CAS 1555763-98-8)
- D-[His]1-Semaglutide X TFA salt (CAS CATO-CPTD788634)
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