4-chloro-1-[(1-ethyl-1H-pyrazol-4-yl)methyl]-1H-pyrazol-5-amine CAS 1171148-73-4
| CAS No. | 1171148-73-4 |
| Molecular Formula | C9H12ClN5 |
| Molecular Weight | 225.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-chloro-1-[(1-ethyl-1H-pyrazol-4-yl)methyl]-1H-pyrazol-5-amine 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.
4-chloro-1-[(1-ethyl-1H-pyrazol-4-yl)methyl]-1H-pyrazol-5-amine (CAS 1171148-73-4) is a high-purity analytical reference standard with the molecular formula C9H12ClN5 and a molecular weight of 225.68 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 4-chloro-1-[(1-ethyl-1H-pyrazol-4-yl)methyl]-1H-pyrazol-5-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 225.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H12ClN5 |
| Molecular Weight | 225.68 g/mol |
| Appearance | Off-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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related chloro Standards
- 4-Chloro-1-((1,3-dimethyl-1h-pyrazol-4-yl)methyl)-1h-pyrazol-5-amine (CAS 1004451-70-0)
- 4-Chloro-1-((1-ethyl-1h-pyrazol-4-yl)methyl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 1004452-02-1)
- 4-Chloro-1-((1,3-dimethyl-1H-pyrazol-4-yl)methyl)-1H-pyrazol-3-amine (CAS 1006343-94-7)
- 4-Chloro-1-((1,5-dimethyl-1h-pyrazol-4-yl)methyl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 1006348-72-6)
- 1-((4-Chloro-3,5-dimethyl-1h-pyrazol-1-yl)methyl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 1006472-80-5)
- 1-((4-Chloro-1H-pyrazol-1-yl)methyl)-3,5-dimethyl-1H-pyrazol-4-amine (CAS 1006473-09-1)
- 4-Chloro-1-((1,5-dimethyl-1H-pyrazol-4-yl)methyl)-1H-pyrazol-5-amine (CAS 1171555-61-5)
- 2-(4-Chloro-1h-pyrazolo[3,4-d]pyrimidin-1-yl)-N,N-dimethylethan-1-amine (CAS 1247910-06-0)
Recommended Standards
- 2-(Chloromethyl)-N,N,5-trimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-amine (CAS 1280654-95-6)
- 4-Chloro-1-(2-(2-methyl-1h-imidazol-1-yl)ethyl)-1h-pyrazol-3-amine (CAS 1340252-13-2)
- 1-(3-(1h-Imidazol-1-yl)propyl)-4-chloro-1h-pyrazol-3-amine (CAS 1340301-83-8)
- 1-((4-Chloro-1,3-dimethyl-1h-pyrazol-5-yl)methyl)-1h-pyrazol-3-amine (CAS 1492672-29-3)
- 2-(trifluoromethyl)thiophene-3-carbonitrile (CAS 2060062-40-8)
- 3-(Pyridin-2-yl)isoxazole-5-carboxylic acid (CAS 716362-11-7)
- (3-Chloro-5-hydroxyphenyl)boronic acid (CAS 1214900-52-3)
- 1-(1H-Benzo[d]imidazol-2-yl)hexane-1,2,3,4,5,6-hexaol (CAS 860188-56-3)
- 1,3,5-Tris(3-carboxyl-4-hydroxyphenyl)benzene (CAS 111800-21-6)
- 5-(5-Chloro-2-thienyl)-3-methyl-5-oxovaleric acid (CAS 845781-52-4)
- (R)-Chroman-4-amine HCl (CAS 730980-59-3)
- 2-Chloro-1-(trifluoromethoxy)-4-(trifluoromethyl)benzene (CAS 1417567-09-9)
- Methyl 3-(3-cyanophenyl)benzoate (CAS 168619-12-3)
- Anorexigenic Peptide (CAS 69275-10-1)
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