3-(3-Ethoxyphenyl)-1h-pyrazol-5-amine CAS 502132-94-7
| CAS No. | 502132-94-7 |
| Molecular Formula | C11H13N3O |
| Molecular Weight | 203.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 203.24 g/mol gives 3-(3-Ethoxyphenyl)-1h-pyrazol-5-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-(3-Ethoxyphenyl)-1h-pyrazol-5-amine (CAS 502132-94-7) is a high-purity analytical reference standard with the molecular formula C11H13N3O and a molecular weight of 203.24 g/mol.
3-(3-Ethoxyphenyl)-1h-pyrazol-5-amine (C11H13N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H13N3O |
| Molecular Weight | 203.24 g/mol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 3 |
Related Ethoxyphenyl Standards
- 4-(4-Ethoxyphenyl)-1H-pyrazol-3-amine (CAS 1040454-88-3)
- 5-(4-Ethoxyphenyl)-1H-pyrazol-3-amine (CAS 129117-13-1)
- 3-(4-Ethoxyphenyl)-1H-pyrazol-4-amine (CAS 1707375-23-2)
- 1-(3-Ethoxyphenyl)-1H-pyrazol-5-amine (CAS 701899-02-7)
- 4-(4-Ethoxyphenyl)-1H-imidazol-2-amine (CAS 76507-16-9)
- 4-(4-Ethoxyphenyl)-4-oxobutanenitrile (CAS 924871-32-9)
- 4-(4-ethoxyphenyl)-1,2,3,6-tetrahydropyridine (CAS 1016688-49-5)
- 4-(2-Ethoxyphenyl)-1,2,3,6-tetrahydropyridine (CAS 1019388-79-4)
Recommended Standards
- 3-(3-Ethoxy-4-methoxyphenyl)prop-2-enenitrile (CAS 851958-89-9)
- 3-(3-Methyl-1h-indol-1-yl)propanoic acid (CAS 57662-47-2)
- 3-(3-ethoxy-4-methoxyphenyl)prop-2-enenitrile (CAS 757962-43-9)
- 3-(3-Phenyl-1,2,4-oxadiazol-5-yl)propan-1-amine (CAS 41470-96-6)
- O1-[(19S)-10,19-diethyl-7-hydroxy-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.0²¹¹.0⁴⁹.0¹⁵²º]henicosa-1(21),2,4,6,8,10,15(20)-heptaen-19-yl] O4-(2,5-dioxopyrrolidin-1-yl) butanedioate (CAS 2400904-71-2)
- Ammonium ferrocyanide (CAS 14481-29-9)
- 2-((1-Methyl-1h-tetrazol-5-yl)thio)-N-(4-phenoxyphenyl)acetamide (CAS 503012-66-6)
- Spiro[bicyclo[2.2.1]heptane-2,2'-oxirane] (CAS 173-91-1)
- Lifitegrast Impurity 168 (CAS CATO-C4X-2409168)
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