(E)-4-((5-Bromothiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one CAS 89035-33-6
| CAS No. | 89035-33-6 |
| Molecular Formula | C14H8BrNO2S |
| Molecular Weight | 334.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-4-((5-Bromothiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 89035-33-6), molecular formula C14H8BrNO2S and molecular weight 334.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H8BrNO2S, (E)-4-((5-Bromothiophen-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, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 334.19 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).
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), (E)-4-((5-Bromothiophen-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 | C14H8BrNO2S |
| Molecular Weight | 334.19 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related E Standards
- (Z)-4-((5-Bromothiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 88991-51-9)
- 2-(5-Bromothiophen-2-yl)quinoline-4-carboxylic acid (CAS 351982-36-0)
- 5-(((5-Bromothiophen-2-yl)methyl)amino)-3,3-dimethyl-5-oxopentanoic acid (CAS 1355495-20-3)
- 5-(((4-Bromothiophen-2-yl)methyl)amino)-3,3-dimethyl-5-oxopentanoic acid (CAS 1355849-31-8)
- n4-((4-Bromothiophen-2-yl)methyl)-6-chloro-n4-methylpyrimidine-2,4-diamine (CAS 1252197-38-8)
- 3-(5-Bromothiophen-2-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde (CAS 274900-91-3)
- (R)-2-(4-Bromothiophen-2-yl)-4-(tert-butoxy)-4-oxobutanoic acid (CAS 2615912-71-3)
- (R)-2-(5-bromothiophen-2-yl)-4-(tert-butoxy)-4-oxobutanoic acid (CAS 2615912-72-4)
Recommended Standards
- 8-Bromo-2,2-dimethyl-6-(methylsulfonyl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 1820889-83-5)
- N-(2-Nitrophenyl)-1,3-propanesultam (CAS 1373232-34-8)
- 1-(3-Bromobenzoyl)benzo[c]isothiazol-3(1H)-one (CAS 877811-86-4)
- Methyl 5-bromo-2-(1,1-dioxidoisothiazolidin-2-yl)benzoate (CAS 1373232-33-7)
- 3-Iodo-1-methyl-1H-pyrazole-4-carbaldehyde (CAS 1946818-23-0)
- 3-((Trifluoromethyl)thio)pyridine (CAS 58313-26-1)
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