(E)-2-(2,4-dichlorostyryl)benzo[d]oxazole CAS 338415-65-9
| CAS No. | 338415-65-9 |
| Molecular Formula | C15H9Cl2NO |
| Molecular Weight | 290.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-2-(2,4-dichlorostyryl)benzo[d]oxazole.
(E)-2-(2,4-dichlorostyryl)benzo[d]oxazole (CAS 338415-65-9), molecular formula C15H9Cl2NO and molecular weight 290.14 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (E)-2-(2,4-dichlorostyryl)benzo[d]oxazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 290.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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)-2-(2,4-dichlorostyryl)benzo[d]oxazole 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 | C15H9Cl2NO |
| Molecular Weight | 290.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related E Standards
- 4-(3,4-Dichlorostyryl)-2,6-dimethylphenol (CAS 125722-15-8)
- (E)-2-(2,6-Dichlorostyryl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1355090-12-8)
- (E)-7-(2,4-dichlorostyryl)-2-methylpyrazolo[1,5-a]pyrimidine (CAS 692737-05-6)
- (E)-2-(2,3-dichlorostyryl)benzo[d]thiazole (CAS 338415-37-5)
- (E)-5-(2,4-dichlorostyryl)-1,3,4-oxadiazole-2(3H)-thione (CAS 478041-73-5)
- 5-(2,4-Dichlorostyryl)-3-methylisoxazol-4-amine (CAS 62878-95-9)
- (E)-2-((4-(2,4-dichlorostyryl)pyrimidin-2-yl)thio)acetonitrile (CAS 339278-45-4)
- (E)-6-(2,4-dichlorostyryl)-4,4-dimethyl-2-(methylthio)-1,4-dihydropyrimidine (CAS 329234-89-1)
Recommended Standards
- (4-Bromo-2-(methylamino)phenyl)diethylphosphine oxide (CAS 2685825-06-1)
- 1-(3,4-Dichlorophenyl)-4-methyl-4-nitropentan-1-one (CAS 400085-26-9)
- (2,6-Dichlorophenyl)(1H-indol-1-yl)methanone (CAS 87894-42-6)
- 1-(4-Iodobutyl)-2-methoxybenzene (CAS 75934-24-6)
- (R)-1-(3,4-dichlorophenyl)butan-1-amine (CAS 1213631-93-6)
- 6-Bromo-4-chloro-8-fluoro-2-methoxyquinazoline (CAS 2275753-56-3)
- 3-(6,6-Dimethyl-2,4-dioxo-3-azabicyclo[3.1.0]Hexan-3-yl)benzoic acid (CAS 1415719-70-8)
- (R)-1-(5-Chloro-2-fluoropyridin-3-yl)ethanol (CAS 2227848-26-0)
- 1-(3,6-Dihydroxy-2-methoxyphenyl)ethanone (CAS 33539-20-7)
- 2,2,2-Trifluoro-N-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)phenethyl)acetamide (CAS 2135636-84-7)
- 4-(Pyridin-2-yl)-1H-pyrrole-3-carbonitrile (CAS 87388-65-6)
- Bumetanide Impurity 30 (CAS CATO-C4X-198630)
- Ethyl 2-(benzylthio)-7-hydroxy-[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylate (CAS 51646-43-6)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
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