1-Cyclopentyl-3,5-dinitro-1H-pyrazole CAS 1281984-38-0
| CAS No. | 1281984-38-0 |
| Molecular Formula | C8H10N4O4 |
| Molecular Weight | 226.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 1-Cyclopentyl-3,5-dinitro-1H-pyrazole (CAS 1281984-38-0), a certified reference material (molecular formula C8H10N4O4, MW 226.19 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H10N4O4, 1-Cyclopentyl-3,5-dinitro-1H-pyrazole contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 226.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H10N4O4 |
| Molecular Weight | 226.19 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
Related Cyclopentyl Standards
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Recommended Standards
- trans-4-(2,2,2-Trifluoroethoxy)cyclohexanecarboxylic acid (CAS 128140-49-8)
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- 4,4,4-Trifluoro-3-(tetrahydro-2h-pyran-3-yl)butanoic acid (CAS 1341160-91-5)
- 2-Bromo-5-(2,6-difluoro-4-(trifluoromethyl)phenoxy)-1,3-difluorobenzene (CAS 2244084-75-9)
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- 4-(2-(Aminomethyl)-3,3,3-trifluoropropyl)thiomorpholine 1,1-dioxide (CAS 1697949-22-6)
- Fexofenadine EP Impurity F(HCl) (CAS CATO-C4X-17948)
- 6-(Trifluoromethyl)pyrimidine-4-carbonitrile (CAS 1359996-77-2)
- 3-(Pyridin-3-yl)benzonitrile (CAS 4350-54-3)
- 3-(Benzylthio)-4-ethyl-5-(furan-2-yl)-4H-1,2,4-triazole (CAS 618412-84-3)
- 6-cyanoimidazo[1,2-a]pyridine-2-carboxylic acid (CAS 1020035-67-9)
- 5-Chloro-2-ethoxy-pyridine-4-carbaldehyde (CAS 2056110-42-8)
- Semaglutide impurity 248 (CAS CATO-C4X-2226248)
Why CATO?
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