(5-(Thiophen-2-yl)isoxazol-3-yl)methyl 2-phenylbutanoate CAS 946238-45-5
| CAS No. | 946238-45-5 |
| Molecular Formula | C18H17NO3S |
| Molecular Weight | 327.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (5-(Thiophen-2-yl)isoxazol-3-yl)methyl 2-phenylbutanoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 327.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies (5-(Thiophen-2-yl)isoxazol-3-yl)methyl 2-phenylbutanoate (CAS 946238-45-5), a certified reference material (molecular formula C18H17NO3S, MW 327.40 g/mol) for analytical method development and quality control.
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-(Thiophen-2-yl)isoxazol-3-yl)methyl 2-phenylbutanoate 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 | C18H17NO3S |
| Molecular Weight | 327.40 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- (4Z)-3-Ethoxy-1-phenyl-4-({[(thiophen-2-yl)methyl]amino}methylidene)-4,5-dihydro-1H-pyrazol-5-one (CAS 338751-03-4)
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- (3-(tert-Butyl)-2-oxooxazolidin-5-yl)methyl 4-methylbenzenesulfonate (CAS 85117-74-4)
- (E)-({6-phenylimidazo[2,1-b][1,3]thiazol-5-yl}methylidene)amino 3-methylbutanoate (CAS 400081-60-9)
- 6-Chloro-2,2’-bipyridine (CAS 13040-77-2)
- 5-fluoro-2-methoxy-pyridine-4-carbaldehyde (CAS 884495-12-9)
- 2-([1,1':3',1''-Terphenyl]-5'-yl)-4,6-dichloro-1,3,5-triazine (CAS 1616232-09-7)
- Methyl 2-(5-amino-4-carbamoylthiophen-2-yl)acetate (CAS 2163772-35-6)
- tert-Butyl cis-3-amino-5-fluoropiperidine-1-carboxylate (CAS 1271810-13-9)
- 4-Amino-5-(4-chlorobenzoyl)-2-(phenylamino)thiophene-3-carbonitrile (CAS 328262-53-9)
- Pemafibrate Impurity 35 (CAS CATO-C4X-290335)
- n-(2-Methyl-5-(methylsulfonyl)phenyl)isobutyramide (CAS 1090622-76-6)
- 4-(3-Chloropropyl)-1,2-dimethylbenzene (CAS 27650-73-3)
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