1-Cyclobutyl-1H-pyrazol-5-amine hydrochloride CAS 2137668-56-3
| CAS No. | 2137668-56-3 |
| Molecular Formula | C7H11N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 173.64 g/mol gives 1-Cyclobutyl-1H-pyrazol-5-amine hydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-Cyclobutyl-1H-pyrazol-5-amine hydrochloride (CAS 2137668-56-3), molecular formula C7H11N3HCl and molecular weight 173.64 g/mol, is a CATO reference standard with documented purity and traceability.
1-Cyclobutyl-1H-pyrazol-5-amine hydrochloride (C7H11N3HCl) contains a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C7H11N3 HCl |
| Molecular Weight | 173.64 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.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Cyclobutyl Standards
- Cyclobutyl 4-methoxyphenyl ketone (CAS 100121-80-0)
- 1-Cyclobutyl-1H-pyrazole-4-boronic Acid Pinacol Ester (CAS 1002309-48-9)
- Cyclobutyl(p-tolyl)methanamine (CAS 1016749-43-1)
- Cyclobutyl(4-ethoxyphenyl)methanamine (CAS 1020935-84-5)
- Cyclobutyl(3-(trifluoromethyl)phenyl)methanamine (CAS 1021032-82-5)
- Cyclobutyl(2,3-dihydrobenzofuran-5-yl)methanamine (CAS 1021058-13-8)
- Cyclobutyl 4-methylbenzenesulfonate (CAS 10437-85-1)
- 1-Cyclobutyl-3,5-dimethyl-1h-pyrazole-4-carboxylic acid (CAS 1056618-08-6)
Recommended Standards
- Ethyl 2-bromo-6h-thieno[2,3-b]pyrrole-5-carboxylate (CAS 91545-55-0)
- 2-Chloro-5-fluoro-4-phenylpyridine (CAS 1807238-41-0)
- Deamino-NADPH (CAS 42934-87-2)
- 3-[(1-oxo-1-phenylpropan-2-yl)carbamoyl]propanoic acid (CAS 1258651-87-4)
- 2-(2-Ethyl-1-piperidinyl)-N-hydroxybenzenecarboximidamide (CAS 1094863-76-9)
- 3-[Benzyl-(2-ethoxycarbonyl-ethyl)-amino]-butyric acid ethyl ester (CAS 58859-66-8)
- 3-Oxo-2,3-dihydropyridazine-4-carboxamide (CAS 2125-92-0)
- 2-(7-Bromo-2,3-dihydro-1,4-benzodioxin-6-yl)acetic acid (CAS 98947-00-3)
- N-((1H-benzo[d][1,2,3]triazol-1-yl)methyl)-4-methoxyaniline (CAS 62001-34-7)
- Semaglutide impurity 273 (CAS CATO-C4X-2226273)
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