5-phenyl-2,3-dihydro-1,2,4-oxadiazol-3-one CAS 21084-84-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21084-84-4 |
| Molecular Formula | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-phenyl-2,3-dihydro-1,2,4-oxadiazol-3-one (CAS 21084-84-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H6N2O2. Molecular weight: 162.15 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H6N2O2 |
| Molecular Weight | 162.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
Related phenyl Standards
- 2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-4-carbaldehyde (CAS 1190316-28-9)
- 2,3-Dihydro-[1,4]dioxino[2,3-b]pyridine-7-carbonitrile (CAS 1261365-28-9)
- 4,5-Dihydro-1,3,4-benzoxadiazepin-5-one (CAS 144760-61-2)
- 2-Oxo-2,3-dihydro-1H-benzo[d]imidazole-4-carbaldehyde (CAS 1553231-99-4)
- 2,3-Dihydro-[1,4]dioxino-[2,3-c]pyridine-5-carbonitrile (CAS 1823922-75-3)
- 2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbaldehyde (CAS 189563-98-2)
- 1-Oxo-2,3-dihydro-1H-pyrrolo[3,4-c]pyridine-6-carbaldehyde (CAS 2847886-20-6)
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Recommended Standards
- 5-Phenyl-1H-tetrazol-1-ol (CAS 55513-24-1)
- 5-Pyridin-2-yl-1,3,4-oxadiazol-2-amine (CAS 5711-72-8)
- 5-Methyl-6-oxo-1,4,5,6-tetrahydropyrazine-2,3-dicarbonitrile (CAS 57444-05-0)
- trans-4-[2-Oxo-2-(2-nitrophenyl)ethyl]-cyclohexane-1-carboxylic acid (CAS 736136-65-5)
- (S)-cyclopropyl(3,4,5-trifluorophenyl)methanamine (CAS 1213414-26-6)
- Bis-μ-iodobis(ethylenediamine)diplatinum(II) nitrate (CAS 109998-76-7)
- 4-Chloro-2-methyl-3-(trifluoromethyl)aniline hydrochloride (CAS 112641-24-4)
- 3-Azepan-1-ylpyrrolidine-2,5-dione (CAS 1706431-02-8)
- 2-Chloro-5-methylaniline hydrochloride (CAS 62224-71-9)
- Acetyl-Exenatide trifluoroacetate salt (CAS 305815-28-5)
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