(5-Phenyl-3-isoxazolyl)methyl 2,4-dichlorobenzenecarboxylate CAS 343374-55-0
| CAS No. | 343374-55-0 |
| Molecular Formula | C17H11Cl2NO3 |
| Molecular Weight | 348.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5-Phenyl-3-isoxazolyl)methyl 2,4-dichlorobenzenecarboxylate (CAS 343374-55-0), molecular formula C17H11Cl2NO3 and molecular weight 348.18 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (5-Phenyl-3-isoxazolyl)methyl 2,4-dichlorobenzenecarboxylate (C17H11Cl2NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 348.18 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C17H11Cl2NO3 |
| Molecular Weight | 348.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Phenyl Standards
- [[4-[2-[[(5-Methyl-3-isoxazolyl)carbonyl]amino]ethyl]phenyl]sulfonyl]-carbamic Acid (CAS 24489-02-9)
- 2-[(4-{[(5-Methyl-3-isoxazolyl)amino]sulfonyl}anilino)carbonyl]cyclohexanecarboxylic acid (CAS 799250-54-7)
- 5-(5-Isoxazolyl)-2-methyl-3-furansulfonyl chloride 5-(isoxazol-5-yl)-2-methylfuran-3-sulfonyl chloride 924865-06-5 (CAS 924865-06-5)
- 2-[(5-Methyl-3-isoxazolyl)methoxy]-3-phenyl-1-propanamine (CAS 883537-05-1)
- Ethyl 2-(5-isoxazolyl)-3-phenylpropanoate (CAS 477869-99-1)
- 5-(5-Isoxazolyl)-2-furansulfonyl chloride 5-(isoxazol-5-yl)furan-2-sulfonyl chloride 551930-54-2 (CAS 551930-54-2)
- 4-(3-Phenyl-5-isoxazolyl)piperidine (CAS 737766-69-7)
- 4-(5-Phenyl-3-isoxazolyl)piperidine (CAS 737766-70-0)
Recommended Standards
- (5-(4-Chlorophenyl)isoxazol-3-yl)methyl 4-chlorobenzoate (CAS 338777-07-4)
- (5-Phenylisoxazol-3-yl)methyl 3,4-dichlorobenzoate (CAS 343374-57-2)
- (1-(4-Chlorophenyl)-1H-1,2,3-triazol-4-yl)methyl 4-chlorobenzoate (CAS 338419-25-3)
- [5-(2-Chlorophenyl)-1,2-oxazol-3-yl]methyl 3-chlorobenzoate (CAS 343374-48-1)
- 4-Bromo-2-(difluoromethyl)-6-iodopyridine-3-carbonyl chloride (CAS 1805170-63-1)
- (4R)-Methyl 4-((3R,5R,8R,10S,13R,14S,17R)-3-acetoxy-10,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)pentanoate (CAS 3253-69-8)
- 1,3-Dimethyl-1H-benzo[d][1,2,3]triazol-3-ium iodide (CAS 22713-35-5)
- 4-(1H-Benzo[d]imidazol-2-yl)oxazole (CAS 29941-76-2)
- 3-(2-Aminoethyl)-5-nitro-1H-indole-2-carboxylic acid (CAS 96735-00-1)
- 4,6-Dimethylcyclohex-3-ene-1-carbaldehyde (CAS 36635-35-5)
- Phenyl α-D-Glucopyranoside (CAS 4630-62-0)
- N-ethyl-3-methylpyrazin-2-amine (CAS 1490918-53-0)
- 2-(2-Hydroxyadamantan-2-yl)acetonitrile (CAS 725246-77-5)
- Neuropeptide Y (3-36) (human, rat) trifluoroacetate salt (CAS 150138-78-6)
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