ethyl 1-(3-aminophenyl)-1H-pyrazole-3-carboxylate CAS 1153282-89-3
| CAS No. | 1153282-89-3 |
| Molecular Formula | C12H13N3O2 |
| Molecular Weight | 231.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
ethyl 1-(3-aminophenyl)-1H-pyrazole-3-carboxylate (C12H13N3O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
ethyl 1-(3-aminophenyl)-1H-pyrazole-3-carboxylate (CAS 1153282-89-3), molecular formula C12H13N3O2 and molecular weight 231.25 g/mol, is a CATO reference standard with documented purity and traceability.
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 ethyl 1-(3-aminophenyl)-1H-pyrazole-3-carboxylate 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 | C12H13N3O2 |
| Molecular Weight | 231.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
Related ethyl Standards
- 1-(4-aminophenyl)-3-(furan-2-ylmethyl)urea (CAS 1154873-08-1)
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- 2-(3-Aminophenyl)tetrahydro-1H-pyrrolo[1,2-c]imidazole-1,3(2H)-dione (CAS 1219335-80-4)
- Methyl 1-(2-aminophenyl)-5-methyl-1H-pyrazole-3-carboxylate (CAS 1251950-62-5)
- Methyl 1-(4-aminophenyl)-5-methyl-1H-pyrazole-3-carboxylate (CAS 1272756-53-2)
- 2-(4-Aminophenyl)tetrahydro-1H-pyrrolo[1,2-c]imidazole-1,3(2H)-dione (CAS 1284540-54-0)
- 2-(4-Aminophenyl)-N,5-dimethyloxazole-4-carboxamide (CAS 1334487-88-5)
Recommended Standards
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