(Z)-4-((5-Bromothiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one CAS 88991-51-9
| CAS No. | 88991-51-9 |
| Molecular Formula | C14H8BrNO2S |
| Molecular Weight | 334.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (Z)-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.
CATO supplies (Z)-4-((5-Bromothiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 88991-51-9), a certified reference material (molecular formula C14H8BrNO2S, MW 334.19 g/mol) for analytical method development and quality control.
Based on its molecular formula C14H8BrNO2S, (Z)-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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 Z Standards
- (E)-4-((5-Bromothiophen-2-yl)methylene)-2-phenyloxazol-5(4H)-one (CAS 89035-33-6)
- 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
- 1-(3-Bromobenzoyl)benzo[c]isothiazol-3(1H)-one (CAS 877811-86-4)
- 8-Bromo-2,2-dimethyl-6-(methylsulfonyl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 1820889-83-5)
- 1-(4-Bromobenzenesulfonyl)pyrrolidine-2-carboxylic acid (CAS 251097-16-2)
- N-(2-Nitrophenyl)-1,3-propanesultam (CAS 1373232-34-8)
- (2-Cyclopropyloxolan-3-yl)methanol (CAS 1499610-82-0)
- 2-Bromo-1-methyl-1H-imidazole-4-carboxylic Acid (CAS 852181-03-4)
- 3-Iodo-5-(methoxycarbonyl)benzoic acid (CAS 93116-99-5)
- (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(4-(tritylamino)phenyl)propanoic acid (CAS 1356823-05-6)
- 1-Cyclopentylpyrrolidine-2-carboxamide (CAS 380608-76-4)
- (1S,3R)-3-Methoxy-cyclohexylamine hydrochloride (CAS 1821738-84-4)
- Spironolactone EP Impurity F (CAS 976-71-6)
- Phosphoramidite Impurity 25 (CAS CATO-C4X-288625)
- 1-(2-Chlorophenyl)-3-phenyl-1H-pyrazole-5-carboxylic acid (CAS 618102-00-4)
- Tirzepatide Impurity 52 (CAS CATO-C4X-324052)
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