3-(3-Ethoxy-5-methylisoxazol-4-yl)propanal CAS 197508-74-0
| CAS No. | 197508-74-0 |
| Molecular Formula | C9H13NO3 |
| Molecular Weight | 183.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 183.20 g/mol gives 3-(3-Ethoxy-5-methylisoxazol-4-yl)propanal distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-(3-Ethoxy-5-methylisoxazol-4-yl)propanal (CAS 197508-74-0), a certified reference material (molecular formula C9H13NO3, MW 183.20 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H13NO3, 3-(3-Ethoxy-5-methylisoxazol-4-yl)propanal 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 183.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H13NO3 |
| Molecular Weight | 183.20 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2013 |
| Nitrogen Atoms | 1 |
Related Ethoxy Standards
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Recommended Standards
- (6-Fluorobenzo[d]thiazol-2-yl)methanol (CAS 197364-68-4)
- 4-Amino-2-(dimethoxymethyl)phenol (CAS 197707-52-1)
- 1-Cyclopropyl-2-methyl-5-oxopyrrolidine-2-carboxylic acid (CAS 1935343-60-4)
- (1R,3S,5S)-6-Methyl-7-oxo-6-azabicyclo[3.2.0]heptan-3-yl acetate (CAS 524018-45-9)
- 2-((Trimethylsilyl)ethynyl)phenol (CAS 81787-62-4)
- 4-(Thiophen-2-yl)-N-(3-(trifluoromethyl)phenyl)benzamide (CAS 338794-30-2)
- 2-(Difluoromethyl)-6-hydroxy-3-methylpyridine-5-acetonitrile (CAS 1807121-73-8)
- 9-Methyl-2,3,4,9-tetrahydro-1H-carbazole-6-D (CAS 107651-00-3)
- Hexachloro-1,3-butadiene-13C4 (CAS 93951-70-3)
- (S)-2-(2-Fluoro-4-methoxyphenyl)pyrrolidine (CAS 1213101-67-7)
- Isopropyl pyrimidine-4-carboxylate (CAS 1855684-86-4)
- 1-bromopyrazolo[5,1-a]isoquinoline (CAS 2766427-87-4)
- D-glycero-tetrulose (CAS 496-55-9)
- Semaglutide Impurity 157 (x TFA Salt) (CAS CATO-C4X-2226157)
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