5-(p-Tolyl)-4,5-dihydroisoxazol-5-ol CAS 53009-33-9
| CAS No. | 53009-33-9 |
| Molecular Formula | C10H11NO2 |
| Molecular Weight | 177.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(p-Tolyl)-4,5-dihydroisoxazol-5-ol (CAS 53009-33-9) is a high-purity analytical reference standard with the molecular formula C10H11NO2 and a molecular weight of 177.20 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 5-(p-Tolyl)-4,5-dihydroisoxazol-5-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 177.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 5-(p-Tolyl)-4,5-dihydroisoxazol-5-ol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H11NO2 |
| Molecular Weight | 177.20 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 |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 5-(Hydroxymethyl)-3,4-dihydroquinolin-2(1H)-one (CAS 726208-76-0)
- 5-(Dimethylamino)isobenzofuran-1(3H)-one (CAS 65399-09-9)
- 5,6,7,8-Tetrahydro-[1,3]dioxolo[4,5-g]isoquinoline (CAS 94143-83-6)
- 5-(Dimethylamino)-1H-benzo[d]imidazol-2(3H)-one (CAS 85545-61-5)
- 5-(Ethylsulfonyl)-2-thioxo-4-(m-tolyl)-1,2-dihydropyridine-3-carbonitrile (CAS 1774897-98-1)
- 2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(2-chlorophenyl)acetic acid (CAS 1260589-83-0)
- 3-(1-benzofuran-5-yl)-N-(oxan-4-yl)imidazo[1,2-b]pyridazin-6-amine (CAS 1012345-71-9)
- 7-Hydroxy-1-(pyrrolidin-1-yl)heptane-1-thione (CAS 73200-14-3)
- 1,4-Bis(methoxydimethylsilyl)benzene (CAS 131182-68-8)
- 5-Acetyl-6,7-dihydrobenzo[b]thiophen-4(5h)-one (CAS 19983-48-3)
- 2-(2-Bromophenyl)-1-phenyl-5,6,7,8-tetrahydroquinazoline-4(1H)-thione (CAS 62721-95-3)
- tert-Butyl 4-(4,5-dihydro-1H-imidazol-2-yl)piperidine-1-carboxylate (CAS 1355334-71-2)
- 2,6-Dimethoxy-4-{[(2-methylpropyl)amino]methyl}phenol (CAS 1038273-66-3)
- Acetyl Tetrapeptide-11 (CAS 928006-88-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com