5-(1-Phenoxyethyl)-1-(phenylsulfonyl)-1H-pyrazole CAS 321999-02-4
| CAS No. | 321999-02-4 |
| Molecular Formula | C17H16N2O3S |
| Molecular Weight | 328.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5-(1-Phenoxyethyl)-1-(phenylsulfonyl)-1H-pyrazole (CAS 321999-02-4) is a high-purity analytical reference standard with the molecular formula C17H16N2O3S and a molecular weight of 328.39 g/mol.
Structurally, 5-(1-Phenoxyethyl)-1-(phenylsulfonyl)-1H-pyrazole (C17H16N2O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 328.39 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-(1-Phenoxyethyl)-1-(phenylsulfonyl)-1H-pyrazole 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 | C17H16N2O3S |
| Molecular Weight | 328.39 g/mol |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-BRomo-1-thiocyanato-3-trifluoromethyl-benzene (CAS 1823516-41-1)
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- 2,3,4,5-Tetrachlorophenol (CAS 4901-51-3)
- Methyl 3-chloro-5-methyl-2-oxohexanoate (CAS 145475-50-9)
- 2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-2-(2,6-dichlorophenyl)acetamide (CAS 338407-72-0)
- 3,4-Dibromo-6-fluorophenyl isothiocyanate (CAS 1000578-15-3)
- 4-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-4-(2-carboxyethyl)heptanedioic acid (CAS 798576-99-5)
- 2-(5-Bromopyridin-3-yl)-1h-1,3-benzodiazol-6-amine (CAS 1035818-96-2)
- Crustacean Cardioactive Peptide (CCAP) (CAS 309247-84-5)
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