1-[2-(1H-Pyrazol-1-yl)ethyl]piperazine CAS 381721-56-8
| CAS No. | 381721-56-8 |
| Molecular Formula | C9H16N4 |
| Molecular Weight | 180.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 180.25 g/mol gives 1-[2-(1H-Pyrazol-1-yl)ethyl]piperazine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 1-[2-(1H-Pyrazol-1-yl)ethyl]piperazine (CAS 381721-56-8), a certified reference material (molecular formula C9H16N4, MW 180.25 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H16N4, 1-[2-(1H-Pyrazol-1-yl)ethyl]piperazine contains a nitrogen-containing heterocyclic scaffold, a nitrile group; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 180.25 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).
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.
CATO manufactures 1-[2-(1H-Pyrazol-1-yl)ethyl]piperazine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H16N4 |
| Molecular Weight | 180.25 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 |
| 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.) | 2025 |
| Nitrogen Atoms | 4 |
Related H Standards
- 1-[(1H-Pyrazol-1-yl)methyl]cyclohexan-1-ol (CAS 1496253-76-9)
- 1-((1H-Pyrazol-1-yl)methyl)-4-methylpiperazine (CAS 91272-90-1)
- 1-(1H-Pyrazol-1-yl)heptan-1-one (CAS 544433-72-9)
- 1-(2-(1h-pyrazol-4-yl)ethyl)piperazine (CAS 381722-51-6)
- 1-(1H-pyrazol-1-yl)cyclopentane-1-carboxylic acid (CAS 1249180-01-5)
- 5-(1h-Pyrazol-3-yl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 1339857-20-3)
- [2-(1H-Pyrazol-1-yl)-1,3-thiazol-4-yl]methanol (CAS 256420-40-3)
- 4-(2-(1H-Pyrazol-1-yl)ethyl)morpholine (CAS 1111096-05-9)
Recommended Standards
- 1-[2-(1H-Imidazol-4-yl)ethyl]piperazine (CAS 381721-54-6)
- 1-amino-2,7-naphthyridine-4-carbonitrile (CAS 2730140-55-1)
- 1-[(5-Methyl-2-furyl)methyl]piperazine (CAS 873433-11-5)
- 1-Butyl-1,4-dihydropyridine-3-carboxamide (CAS 58880-45-8)
- N-((1H-Benzo[d][1,2,3]triazol-1-yl)methyl)-4-isobutoxy-N-phenylaniline (CAS 300680-09-5)
- (2R,3S,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(5-bromo-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite (CAS 142246-64-8)
- Trimellitic Acid (CAS 528-44-9)
- Methyl 2-(6-Bromo-5-methyl-3-indolyl)-2-oxoacetate (CAS 2097800-37-6)
- 2-(7-(3-Fluorophenyl)-1H-indol-3-yl)acetonitrile (CAS 1214390-92-7)
- 1-Fluoro-2-methoxy-3-vinylbenzene (CAS 499235-07-3)
- N,N-Dimethyl-4-[(propylamino)methyl]aniline dihydrochloride (CAS 1240578-26-0)
- 2-Cyclopropylquinazoline-4-thiol (CAS 604754-96-3)
- N-Hydroxy-2-(4-methyl-1-piperazinyl)-benzenecarboximidamide (CAS 1021244-09-6)
- Semaglutide Impurity 12 (CAS CATO-C4X-222612)
Why CATO?
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