4-((3,4,4-Trifluorobut-3-en-1-yl)sulfonyl)-1,2-dihydro-3H-pyrazol-3-one CAS 321341-11-1
| CAS No. | 321341-11-1 |
| Molecular Formula | C7H7F3N2O3S |
| Molecular Weight | 256.20 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.
4-((3,4,4-Trifluorobut-3-en-1-yl)sulfonyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 321341-11-1) is a high-purity analytical reference standard with the molecular formula C7H7F3N2O3S and a molecular weight of 256.20 g/mol.
Structurally, 4-((3,4,4-Trifluorobut-3-en-1-yl)sulfonyl)-1,2-dihydro-3H-pyrazol-3-one (C7H7F3N2O3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 256.20 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H7F3N2O3S |
| Molecular Weight | 256.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Trifluorobut Standards
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Recommended Standards
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- 4-(Trifluoromethoxy)benzene-1-sulfonohydrazide (CAS 685542-10-3)
- N-methyl-2-((1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl)oxy)-N-phenylacetamide (CAS 150311-29-8)
- 4-Hydroxy-5-nitro-2,3-dihydro-1H-inden-1-one (CAS 375825-59-5)
- Methyl 2-(o-tolyloxy)acetate (CAS 2989-17-5)
- 4-Chloro-6-methoxy-2-(methylthio)pyrimidine-5-carbonitrile (CAS 56035-75-7)
- 5-Methyl-N-(5-methylisoxazol-3-yl)-3-phenylisoxazole-4-carboxamide (CAS 442565-11-9)
- Dichlorobis[1- (dicyclohexylphosphi no- kP) piperidine] -palladium (CAS 1227935-55-8)
- 1-[4-[4-(4-Methoxyphenyl)-1-piperazinyl]phenyl]-3-(1-methylethyl)-2-imidazolidinone (CAS 95182-50-6)
- 1,3-Bis((tetrahydrofuran-2-yl)methyl)benzene (CAS 62113-38-6)
- 2-Fluorobenzimidamide (CAS 71204-93-8)
- Peptide 431 (CAS CATO-CPTD788431)
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