2,5-Bis-(4-fluorophenyl)-1,3,4-oxadiazole CAS 324-81-2
| CAS No. | 324-81-2 |
| Molecular Formula | C15H18N4O8 |
| Molecular Weight | 382.33 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,5-Bis-(4-fluorophenyl)-1,3,4-oxadiazole (CAS 324-81-2), molecular formula C15H18N4O8 and molecular weight 382.33 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,5-Bis-(4-fluorophenyl)-1,3,4-oxadiazole (C15H18N4O8) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 382.33 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 2,5-Bis-(4-fluorophenyl)-1,3,4-oxadiazole 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 | C15H18N4O8 |
| Molecular Weight | 382.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
Related Bis Standards
- N-[[3-(4-fluorophenyl)-2-oxo-5-oxazolidinyl]methyl]-4-(trifluoromethyl)-Benzamide (CAS 954642-81-0)
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- (2Z)-2-[(2-Fluorophenyl)methylidene]-1-azabicyclo[2.2.2]octan-3-yl 4-nitrobenzoate (CAS 477871-54-8)
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Recommended Standards
- 2,2,2-Trifluoroethyl N-({4-[(4-methoxyphenyl)carbamoyl]phenyl}methyl)carbamate (CAS 477857-90-2)
- 2Z,6Z-Farnesyl diphosphate (CAS 27248-37-9)
- 2-(Diethylamino)-N-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethane-1-sulfonamide (CAS 756520-46-4)
- 4-Allyl-3-((2,4-dichlorobenzyl)thio)-5-(thiophen-2-yl)-4H-1,2,4-triazole (CAS 577960-27-1)
- 3,5,7-trichloropyrazolo[1,5-a]pyrimidine (CAS 58347-52-7)
- 3-Hydrazinylpyrrolidine dihydrochloride (CAS 1305282-81-8)
- 56705-83-0 F9995-0150 [4-(2-methylphenoxy)phenyl]amine (CAS 56705-83-0)
- 2-(Pyridin-2-yl)-1-(pyridin-3-yl)ethan-1-one (CAS 59576-33-9)
- n-(1-Cyclohexylethyl)propan-1-amine (CAS 63166-99-4)
- (7-Fluoro-1H-indol-5-yl)boronic acid (CAS 2077188-75-9)
- Ethyl 2-isothiocyanato-4-(methylthio)butanoate (CAS 58511-07-2)
- (s)-1-(Pyridin-4-ylmethyl)pyrrolidin-3-amine trihydrochloride (CAS 169452-30-6)
- 1-((4-Methoxyphenyl)sulfonyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (CAS 2304635-47-8)
- Semaglutide impurity 23 (CAS CATO-C4X-222623)
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