1-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine hydrochloride CAS 1177349-55-1
| CAS No. | 1177349-55-1 |
| Molecular Formula | C10H10ClN3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 1-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine hydrochloride (C10H10ClN3HCl) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, 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.
CATO supplies 1-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine hydrochloride (CAS 1177349-55-1), a certified reference material (molecular formula C10H10ClN3HCl, MW 244.12 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 1-(4-chlorophenyl)-3-methyl-1H-pyrazol-5-amine hydrochloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H10ClN3 HCl |
| Molecular Weight | 244.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related chlorophenyl Standards
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- N-(2-Chlorophenyl)-5-methyl-1-phenyl-1H-1,2,4-triazole-3-carboxamide (CAS 1000572-01-9)
- N-(2-Chlorophenyl)-5-oxo-1-(p-tolyl)-2,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 1000573-94-3)
- Methyl 1-(2-chlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-carboxylate (CAS 1000576-85-1)
- 1-(4-Chlorophenyl)-2,5-dihydro-5-oxo-1H-1,2,4-triazole-3-carboxylic acid phenylamide (CAS 1000577-01-4)
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- 1-(2-Chlorophenyl)-5-oxo-N-phenyl-2,5-dihydro-1H-1,2,4-triazole-3-carboxamide (CAS 1000577-29-6)
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- 3-((1-Ethyl-1h-pyrazol-4-yl)methyl)pyrrolidin-3-ol (CAS 1341606-21-0)
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