Ethyl 5-amino-4-chloro-1-isobutyl-1H-pyrazole-3-carboxylate CAS 1427010-63-6
| CAS No. | 1427010-63-6 |
| Molecular Formula | C10H16ClN3O2 |
| Molecular Weight | 245.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 5-amino-4-chloro-1-isobutyl-1H-pyrazole-3-carboxylate.
Ethyl 5-amino-4-chloro-1-isobutyl-1H-pyrazole-3-carboxylate (CAS 1427010-63-6) is a high-purity analytical reference standard with the molecular formula C10H16ClN3O2 and a molecular weight of 245.71 g/mol.
Structurally, Ethyl 5-amino-4-chloro-1-isobutyl-1H-pyrazole-3-carboxylate (C10H16ClN3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 245.71 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), Ethyl 5-amino-4-chloro-1-isobutyl-1H-pyrazole-3-carboxylate 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 | C10H16ClN3O2 |
| Molecular Weight | 245.71 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 2-Amino-1-(2-chlorophenyl)-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 117723-64-5)
- Methyl 2-amino-3-(4-chloro-3,5-dimethyl-1h-pyrazol-1-yl)-2-methylpropanoate (CAS 1247431-70-4)
- Ethyl 2-amino-3-(4-chloro-3,5-dimethyl-1h-pyrazol-1-yl)propanoate (CAS 1247610-78-1)
- 2-Amino-4-(4-chloro-3,5-dimethyl-1h-pyrazol-1-yl)-2-methylbutanoic acid (CAS 1248690-64-3)
- Ethyl 2-amino-4-(4-chloro-1h-pyrazol-1-yl)-2-methylbutanoate (CAS 1249644-74-3)
- Ethyl 2-amino-3-(4-chloro-5-methyl-1h-pyrazol-1-yl)-2-methylpropanoate (CAS 1339352-89-4)
- Methyl 2-amino-4-(4-chloro-5-methyl-1h-pyrazol-1-yl)-2-methylbutanoate (CAS 1339462-99-5)
- Ethyl 2-amino-4-(4-chloro-5-methyl-1h-pyrazol-1-yl)butanoate (CAS 1340081-61-9)
Recommended Standards
- 1-(5-Chloro-3-methyl-1-phenyl-1H-pyrazol-4-yl)prop-2-yn-1-amine (CAS 1420794-42-8)
- Ethyl 5-amino-1-(tert-butyl)-4-chloro-1H-pyrazole-3-carboxylate (CAS 1427012-80-3)
- Methyl 2-amino-4-(4-chloro-1h-pyrazol-1-yl)-2-methylpentanoate (CAS 1344306-46-2)
- Ethyl 5-amino-1-(sec-butyl)-4-chloro-1H-pyrazole-3-carboxylate (CAS 1427024-19-8)
- 2,2,2-Trifluoro-1-(4-methylpyridin-2-yl)ethan-1-ol (CAS 2092312-45-1)
- 1-(Difluoromethyl)-N-isobutyl-3-methyl-1H-pyrazol-4-amine hydrochloride (CAS 1855937-66-4)
- (R)-N-Boc-Cyanopyrrolidine (CAS 132945-76-7)
- 5-(4-(Benzyloxy)phenyl)-4-(3-fluoro-4-methoxybenzoyl)-3-hydroxy-1-(2-methoxyethyl)-1H-pyrrol-2(5H)-one (CAS 618073-05-5)
- [2-amino-2-(3-methylphenyl)ethyl]dimethylamine (CAS 1247899-43-9)
- 2,5-Di-tert-butylfuran (CAS 4789-40-6)
- 5-(Ethylthio)-2-fluorobenzoic acid (CAS 1392210-08-0)
- Cefdinir Impurity 47 (CAS CATO-C4X-121047)
- 4-Chloro-2-(difluoromethoxy)benzoic acid (CAS 97914-60-8)
- Peptide Impurity 09 X TFA Salt (CAS CATO-CPTD788809)
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