(Z)-4-((5-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one CAS 88991-49-5
| CAS No. | 88991-49-5 |
| Molecular Formula | C15H11NO2S |
| Molecular Weight | 269.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 269.32 g/mol gives (Z)-4-((5-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(Z)-4-((5-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 88991-49-5), molecular formula C15H11NO2S and molecular weight 269.32 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C15H11NO2S, (Z)-4-((5-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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 (Z)-4-((5-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one 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 | 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.) | 1982 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Z Standards
- (E)-4-((5-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 89000-98-6)
- 2-(5-Methylthiophen-2-yl)quinoline-4-carboxylic acid (CAS 73775-26-5)
- 4-((3-Methylthiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 328548-33-0)
- 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
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- (S)-2-(3-(Furan-2-yl)acrylamido)-4-(methylthio)butanoic acid (CAS 261179-09-3)
- 1-(4-(Morpholinosulfonyl)phenyl)ethan-1-one (CAS 58722-35-3)
- 6-Chloro-5-methylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 56844-42-9)
- 4-(Isopropoxycarbonylamino)phenylboronic acid (CAS 1033726-21-4)
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- tert-Butyl 2-amino-2-(2-methylpyridin-3-yl)acetate (CAS 2351998-42-8)
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- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
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