3-(3-(3-Nitrophenyl)-4,5-dihydroisoxazol-5-yl)propanoic acid CAS 919082-61-4
| CAS No. | 919082-61-4 |
| Molecular Formula | C12H12N2O5 |
| Molecular Weight | 264.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-(3-(3-Nitrophenyl)-4,5-dihydroisoxazol-5-yl)propanoic acid (C12H12N2O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 264.23 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-(3-(3-Nitrophenyl)-4,5-dihydroisoxazol-5-yl)propanoic acid (CAS 919082-61-4) is a high-purity analytical reference standard with the molecular formula C12H12N2O5 and a molecular weight of 264.23 g/mol.
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 | C12H12N2O5 |
| Molecular Weight | 264.23 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Nitrophenyl Standards
- 1-(4-Methyl-2-nitrophenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 1160264-10-7)
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- Methyl 1-(3-Nitrophenyl)-5-oxopyrrolidine-3-carboxylate (CAS 345297-81-6)
- n-(4-Nitrophenyl)-3-oxopiperazine-1-carboxamide (CAS 941166-04-7)
- 2-(2-(3-Nitrophenyl)thiazol-4-yl)acetic acid (CAS 1154918-15-6)
- 5-Methyl-2-(4-nitrophenyl)thiazole-4-carboxylic acid (CAS 1198280-31-7)
- 2-(2-(4-Nitrophenyl)thiazol-4-yl)acetic acid (CAS 130560-72-4)
- 4-Methyl-2-(3-nitrophenyl)thiazole-5-carboxylic acid (CAS 15911-29-2)
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- 4-(4-Aminophenyl)tetrahydro-2H-pyran-4-ol (CAS 1002726-77-3)
- 4-(Cyclobutylmethoxy)-3,5-difluorobenzoic acid (CAS 1380300-36-6)
- n-(2-Fluorobenzyl)-2-hydroxybenzamide (CAS 1009896-52-9)
- 1-(2-Bromo-5-chloro-3-fluoropyridin-4-yl)ethanone (CAS 1824268-66-7)
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- 1-Phenyl-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid (CAS 362640-59-3)
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- Insulin B (22-25) (CAS 34367-73-2)
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