1-Acetyl-5(3)-methyl-4-nitro-3(5)-[perfluoro(1-propoxyethyl)]pyrazole CAS 231947-20-9
| CAS No. | 231947-20-9 |
| Molecular Formula | C11H6F11N3O4 |
| Molecular Weight | 453.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Acetyl-5(3)-methyl-4-nitro-3(5)-[perfluoro(1-propoxyethyl)]pyrazole (CAS 231947-20-9) is a high-purity analytical reference standard with the molecular formula C11H6F11N3O4 and a molecular weight of 453.17 g/mol.
The molecular framework of 1-Acetyl-5(3)-methyl-4-nitro-3(5)-[perfluoro(1-propoxyethyl)]pyrazole (C11H6F11N3O4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 1-Acetyl-5(3)-methyl-4-nitro-3(5)-[perfluoro(1-propoxyethyl)]pyrazole 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 | C11H6F11N3O4 |
| Molecular Weight | 453.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2023 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- (E)-3-chloro-2-(2-(1-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)-1H-pyrazol-3-yl)vinyl)-5-(trifluoromethyl)pyridine (CAS 400081-91-6)
- 7-[(E)-2-[(2,4-Dichlorophenyl)methylidene]hydrazin-1-yl]-2,4-bis(trifluoromethyl)-1,8-naphthyridine (CAS 338773-17-4)
- Fipronil-Sulfone (CAS 120068-36-2)
- N-(2,5-dibromophenyl)-2-(4-phenylpiperazin-1-yl)acetamide (CAS 868256-46-6)
- (R)-1-(3-Bromophenyl)-2-methylpropan-1-amine hydrochloride (CAS 1391566-64-5)
- N'-(3-Methyloxazol-2(3H)-ylidene)formohydrazide (CAS 753028-46-5)
- ML214 analog (CAS 385387-83-7)
- 1-(6-Methoxybenzofuran-2-yl)ethan-1-one (CAS 52814-92-3)
- N-(2-chloropyridin-3-yl)isobutyramide (CAS 547705-74-8)
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- 4-Hydroxy-3-iodo-5-nitrobenzaldehyde (CAS 3861-58-3)
- N-(8-Methyl-3,4-dihydroquinolin-1(2H)-yl)-2-phenylacetamide (CAS 62441-28-5)
- 3-Cyclopropyl-5-methyl-1H-pyrazol-4-amine (CAS 2171392-93-9)
- Semaglutide impurity 277 (CAS CATO-C4X-2226277)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com