4-((3-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one CAS 328548-33-0
| CAS No. | 328548-33-0 |
| Molecular Formula | C15H11NO2S |
| Molecular Weight | 269.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-((3-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-((3-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 328548-33-0), a certified reference material (molecular formula C15H11NO2S, MW 269.32 g/mol) for analytical method development and quality control.
Based on its molecular formula C15H11NO2S, 4-((3-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 269.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-((3-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H11NO2S |
| Molecular Weight | 269.32 g/mol |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylthiophen Standards
- (E)-4-((5-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 89000-98-6)
- (Z)-4-((5-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 88991-49-5)
- 2-(5-Methylthiophen-2-yl)quinoline-4-carboxylic acid (CAS 73775-26-5)
- 5-(4-Ethyl-5-methylthiophen-3-yl)-4-isopropyl-4H-1,2,4-triazole-3-thiol (CAS 861227-43-2)
- 5-(4-Ethyl-5-methylthiophen-3-yl)-4-propyl-4H-1,2,4-triazole-3-thiol (CAS 777879-24-0)
- (5-Ethyl-4-methylthiophen-2-yl)(indolin-1-yl)methanone (CAS 794563-32-9)
- 3-(3-Methylthiophen-2-yl)benzene-1-sulfonyl chloride (CAS 1341979-62-1)
- (2E)-3-(5-Methylthiophen-2-yl)-1-(3-nitrophenyl)prop-2-en-1-one (CAS 1440663-62-6)
Recommended Standards
- 4-((3-(Aminomethyl)phenyl)sulfonyl)piperazin-2-one (CAS 933989-70-9)
- 4-(1,1-Dioxidothiomorpholino)benzohydrazide (CAS 677749-58-5)
- 4-((1H-Indol-6-yl)thio)benzoic acid (CAS 919792-60-2)
- 4-(1-Methyl-1h-imidazole-2-carbonyl)quinoline-2-thiol (CAS 721916-21-8)
- 6-Bromo-2-fluoronicotinonitrile (CAS 1802889-85-5)
- 5-(2-Chloroacetyl)-8-methoxy-1-methylquinolin-2(1H)-one (CAS 62835-90-9)
- 2-Methyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine (CAS 126052-22-0)
- 5-Fluoropyrrolo[1,2-b]pyridazin-4(1H)-one (CAS 2306274-82-6)
- 1-(4-Aminophenyl)-3,3,3-trifluoropropan-1-one (CAS 7119-16-6)
- 2-Bromo-4-(tert-butyl)phenyl 3-pyrrolidinylmethyl-ether hydrochloride (CAS 1219948-97-6)
- Labetalol Impurity 50 (CAS CATO-C4X-246650)
- Ethyl 4-(benzyloxy)-3,5-dimethylbenzoate (CAS 773135-42-5)
- N-(5-Acetyl-6-methyl-2-oxo-2H-pyran-3-yl)-4-methylbenzamide (CAS 339009-34-6)
- D-Pro38-Tirzepatide (CAS CATO-CPTD788901)
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