(E)-2-Phenyl-4-(thiophen-2-ylmethylene)oxazol-5(4H)-one CAS 88991-45-1
| CAS No. | 88991-45-1 |
| Molecular Formula | C14H9NO2S |
| Molecular Weight | 255.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-2-Phenyl-4-(thiophen-2-ylmethylene)oxazol-5(4H)-one (CAS 88991-45-1), molecular formula C14H9NO2S and molecular weight 255.29 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, (E)-2-Phenyl-4-(thiophen-2-ylmethylene)oxazol-5(4H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 255.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures (E)-2-Phenyl-4-(thiophen-2-ylmethylene)oxazol-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 | C14H9NO2S |
| Molecular Weight | 255.29 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 |
Recommended Standards
- (E)-2-phenyl-4-(thiophen-2-ylmethylene)oxazol-5(4H)-one (CAS 68100-05-0)
- (E)-2-Phenyl-4-(thiophen-3-ylmethylene)oxazol-5(4H)-one (CAS 88991-47-3)
- (3,4-Dihydroquinolin-1(2H)-yl)(2-fluorophenyl)methanone (CAS 326902-13-0)
- (R)-2-(((Benzyloxy)carbonyl)amino)-3-mercaptopropanoic acid (CAS 53907-29-2)
- (7E, 10E)-7,10-Hexadecadienoic Acid (CAS 2936-83-6)
- Thiometon-sulfoxide (CAS 2703-37-9)
- 4-(tert-Butoxy)-3-iodobenzoic acid (CAS 1131614-11-3)
- 2-Chlorothiophene-3-carboxamide (CAS 189330-14-1)
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Why CATO?
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