1-(2-Fluoroethyl)-N-isopentyl-4-methyl-1H-pyrazol-5-amine hydrochloride CAS 1856035-43-2
| CAS No. | 1856035-43-2 |
| Molecular Formula | C11H20FN3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-(2-Fluoroethyl)-N-isopentyl-4-methyl-1H-pyrazol-5-amine hydrochloride.
1-(2-Fluoroethyl)-N-isopentyl-4-methyl-1H-pyrazol-5-amine hydrochloride (CAS 1856035-43-2), molecular formula C11H20FN3HCl and molecular weight 249.76 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-(2-Fluoroethyl)-N-isopentyl-4-methyl-1H-pyrazol-5-amine hydrochloride (C11H20FN3HCl) is characterized by a nitrile group, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
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 | C11H20FN3 HCl |
| Molecular Weight | 249.76 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
Related Fluoroethyl Standards
- Ethyl (2-fluoroethyl) carbonate (CAS 10117-03-0)
- 1-(2-fluoroethyl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1049730-39-3)
- 5-(2-Fluoroethyl)-2'-deoxyuridine (CAS 108008-61-3)
- 1-(2-Fluoroethyl)piperazine dihydrochloride (CAS 1089279-64-0)
- 1-(2-fluoroethyl)-4-(piperidin-4-yl)piperazine (CAS 1089280-78-3)
- 1-(2-Fluoroethyl)thiourea (CAS 1126430-66-7)
- 2-(2-Fluoroethyl)-4,6-dimethyl-1,3,5-triazine (CAS 113768-74-4)
- N-(2-Fluoroethyl)aniline hydrochloride (CAS 1195-50-2)
Recommended Standards
- 6-Bromo-4-chloroquinoline (CAS 65340-70-7)
- (2S,4R)-4-Hydroxy-N,1-dimethylpyrrolidine-2-carboxamide (CAS 114357-98-1)
- (S)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-(benzylamino)propanoic acid (CAS 1217628-84-6)
- 2-amino-1-ethyl-1H-1,3-benzodiazole-5-carbonitrile (CAS 1379351-42-4)
- (3-(Cyclopentyloxy)-4-methoxyphenyl)boronic acid (CAS 159613-21-5)
- 5-(4-Butoxybenzoyl)-2-chloropyridine (CAS 1187169-64-7)
- Escin IB (CAS 26339-90-2)
- Fulvestrant Impurity 16 (CAS CATO-C4X-191716)
- Ethyl 6-nitrobenzofuran-2-carboxylate (CAS 69603-99-2)
- Semaglutide Impurity 160 (x TFA Salt) (CAS CATO-C4X-2226160)
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