1-Cyclopentylpyrazole CAS 62838-59-9
| CAS No. | 62838-59-9 |
| Molecular Formula | C8H12N2 |
| Molecular Weight | 136.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1-Cyclopentylpyrazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1-Cyclopentylpyrazole (CAS 62838-59-9) is a high-purity analytical reference standard with the molecular formula C8H12N2 and a molecular weight of 136.19 g/mol.
The molecular framework of 1-Cyclopentylpyrazole (C8H12N2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. 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. 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.
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 | C8H12N2 |
| Molecular Weight | 136.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 2 |
Recommended Standards
- 1-Cyclopentylimidazole (CAS 71614-58-9)
- 1-Ethoxy-2-methylbenzene (CAS 614-71-1)
- 1-Benzyl-1-methylhydrazine (CAS 3931-52-0)
- 1-Ethyl-1-phenylhydrazine (CAS 644-21-3)
- 2-[(4-fluorophenyl)methyl]-1,3-thiazole-4-carboxylic acid (CAS 1094291-21-0)
- 3-Phenyl-N-(2-phenylimidazo[1,2-a]pyridin-3-yl)propanamide (CAS 850930-84-6)
- 1-Aminocyclohexanecarboxylic acid compound with sulfuric acid (1:1) (CAS 1172853-02-9)
- 2-(4-Hydroxy-pyrazol-1-yl)-2-methyl-propionic acid methyl ester (CAS 2092814-46-3)
- (4-Morpholin-4-yl-3-nitrophenyl)-methanol hydrochloride (CAS 300665-23-0)
- 2-(Azetidin-3-yloxy)-1-(pyrrolidin-1-yl)propan-1-one (CAS 1342438-39-4)
- Roxadustat Impurity 68 (CAS CATO-C4X-221368)
- N,N-Dimethyl-2-[[2-Phenyl-8-(Trifluoromethyl)-4-Quinazolinyl]Thio]-Acetamide (CAS 606131-37-7)
- n-(Furan-2-ylmethyl)-4-methylpyridin-3-amine (CAS 1344212-13-0)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
Why CATO?
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