3-(2-Hydroxyethoxy)isoxazole-5-carbaldehyde CAS 173038-75-0
| CAS No. | 173038-75-0 |
| Molecular Formula | C6H7NO4 |
| Molecular Weight | 157.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(2-Hydroxyethoxy)isoxazole-5-carbaldehyde (C6H7NO4) 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.
CATO supplies 3-(2-Hydroxyethoxy)isoxazole-5-carbaldehyde (CAS 173038-75-0), a certified reference material (molecular formula C6H7NO4, MW 157.12 g/mol) for analytical method development and quality control.
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 | C6H7NO4 |
| Molecular Weight | 157.12 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, water |
| 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.) | 2006 |
| Nitrogen Atoms | 1 |
Related Hydroxyethoxy Standards
- 2-(2-Hydroxyethoxy)pyridin-3-ol (CAS 156840-58-3)
- 3-(2-Hydroxyethoxy)pyridin-2-ol (CAS 1820648-06-3)
- 3-[2-(2-Hydroxyethoxy)ethoxy]propanenitrile (CAS 10143-54-1)
- 4-(2-hydroxyethoxy)phenol (CAS 13427-53-7)
- 3-(2-Hydroxyethoxy)phenol (CAS 49650-88-6)
- 4792-78-3 2-(2-Hydroxyethoxy)phenol Phenol, 2-(2-hydroxyethoxy)- Catechol, mono(beta-hydroxyethyl)ether EINECS 225-346-1 o-(Hydroxyethoxy)phenol 2-(beta-Hydroxyethoxy)phenol (CAS 4792-78-3)
- 5-(2-Hydroxyethoxy)pentanoic acid (CAS 1038981-53-1)
- Ethyl 3-(2-hydroxyethoxy)propanoate (CAS 89795-15-3)
Recommended Standards
- 2-Amino-4,5-difluorobenzaldehyde (CAS 172843-46-8)
- 3-(hydroxymethyl)-5-methyl-1,2-oxazole-4-carboxylic acid (CAS 1779855-86-5)
- 2-(2-(Difluoromethyl)furan-3-yl)acetonitrile (CAS 1706448-00-1)
- 3-Methoxy-4-methylisoxazole-5-carboxylic acid (CAS 1780322-20-4)
- Pracinostat, 98% (CAS 929016-96-6)
- 2-(Quinoxalin-2-ylthio)ethane-1-sulfonamide (CAS 1344311-45-0)
- N-(5-Amino-2-methylphenyl)octanamide (CAS 1020054-13-0)
- (E)-1-(4-aminopiperidin-1-yl)-3-phenylprop-2-en-1-one hydrochloride (CAS 1159779-76-6)
- (2S)-2-(((Tetrahydro-2H-pyran-2-yl)oxy)methyl)pyrrolidine (CAS 507240-76-8)
- 5-Fluoro-2-(trifluoromethyl)phenylboronic Acid (CAS 928053-97-8)
- (S)-N-Methylpyrrolidin-3-amine (CAS 139015-32-0)
- 3-(1-Methyl-6-oxo-1,6-dihydropyridin-3-yl)propanoic acid (CAS 100095-22-5)
- 2-Bromo-6-methoxybenzothiol (CAS 183133-90-6)
- Biotinyl-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 213779-13-6)
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