1-Ethyl-3-(piperidin-1-yl)-1H-pyrazol-4-amine hydrochloride CAS 1855889-27-8
| CAS No. | 1855889-27-8 |
| Molecular Formula | C10H18N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Ethyl-3-(piperidin-1-yl)-1H-pyrazol-4-amine hydrochloride (CAS 1855889-27-8), molecular formula C10H18N4HCl and molecular weight 230.74 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-Ethyl-3-(piperidin-1-yl)-1H-pyrazol-4-amine hydrochloride (C10H18N4HCl) contains a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 230.74 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H18N4 HCl |
| Molecular Weight | 230.74 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Ethyl Standards
- 1000339-76-3 Ethyl 2-(Piperidin-1-yl)-4-(trifluoromethyl)-1,3-thiazole-5-carboxylate ethyl 2-(piperidin-1-yl)-4-trifluoromethyl-1,3-thiazole-5-carboxylate ethyl 2-piperidin-1-yl-4-(trifluoromethyl)-1,3-thiazole-5-carboxylate (CAS 1000339-76-3)
- 2-(Piperidin-1-yl)-4-(trifluoromethyl)thiazole-5-carboxylic acid (CAS 1000339-77-4)
- Benzyl 2-(piperidin-4-yl)acetate hydrochloride (CAS 1000872-47-8)
- n-(Piperidin-3-ylmethyl)morpholine-4-carboxamide (CAS 1000941-33-2)
- 1000958-55-3 4-Ethyl-1-[2-(piperidin-4-yl)ethyl]piperidine DTXSID60649257 (CAS 1000958-55-3)
- 5-(Piperidin-2-yl)pyridin-2-amine (CAS 100133-12-8)
- 5-(Piperidin-1-ylmethyl)pyrimidine-2,4(1H,3H)-dione (CAS 100133-53-7)
- 1-methyl-5-(piperidin-1-ylcarbonyl)-1H-pyrazol-4-amine (CAS 1001500-82-8)
Recommended Standards
- 61199-71-1 1,2,4,5-Tetrahydro-3H-3lambda~6~,2-benzothiazepine-3,3-dione DTXSID00515068 (CAS 61199-71-1)
- 2-(4-Bromophenyl)-2-hydroxypropanenitrile (CAS 944581-81-1)
- tert-Butyl (2-amino-5-chloro-4-fluorophenyl)carbamate (CAS 1000698-94-1)
- Methyl 2-(2,4-dichlorophenyl)-3-(dimethylamino)acrylate (CAS 935506-17-5)
- furan-2-(²H)carboxylic acid (CAS 138720-19-1)
- (R)-1-(tert-butoxycarbonyl)-2-(3,4-dichlorobenzyl)pyrrolidine-2-carboxylic acid (CAS 959578-28-0)
- PD 135158 (CAS 130325-35-8)
- Methyl 1-methyl-3-(((methylsulfonyl)oxy)methyl)-1H-pyrazole-5-carboxylate (CAS 2460255-85-8)
- Eravacycline impurity 19 (CAS CATO-C4X-293819)
- Liraglutide (CAS 204656-20-2)
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