3-Ethoxy-5-methyl-1H-pyrazol-4-amine CAS 87675-33-0
| CAS No. | 87675-33-0 |
| Molecular Formula | C6H11N3O |
| Molecular Weight | 141.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 141.17 g/mol gives 3-Ethoxy-5-methyl-1H-pyrazol-4-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-Ethoxy-5-methyl-1H-pyrazol-4-amine (CAS 87675-33-0), molecular formula C6H11N3O and molecular weight 141.17 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Ethoxy-5-methyl-1H-pyrazol-4-amine (C6H11N3O) is characterized by an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), 3-Ethoxy-5-methyl-1H-pyrazol-4-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.
Physical & Chemical Properties
| Molecular Formula | C6H11N3O |
| Molecular Weight | 141.17 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 3 |
Related Ethoxy Standards
- 3-Ethoxy-4,5-dimethylisoxazole (CAS 127020-26-2)
- 3-Ethoxy-1-methyl-1h-pyrazol-4-amine (CAS 1356543-43-5)
- 4-Ethoxy-3-methyl-1,5-dihydro-2H-pyrrol-2-one (CAS 246147-55-7)
- 5-Ethoxy-2-fluoropyridine (CAS 1443679-87-5)
- 4-Ethoxy-2-fluoropyridine (CAS 175965-82-9)
- 2-Ethoxy-3-fluoropyridine (CAS 858675-63-5)
- 2-Ethoxy-4-fluoropyridine (CAS 858675-62-4)
- 2-Ethoxy-5-fluoropyridine (CAS 858675-61-3)
Recommended Standards
- 3-Azabicyclo[3.2.0]Heptane-2-carboxylic acid (CAS 740038-61-3)
- 3-Ethynyl-1h-indole (CAS 62365-78-0)
- 3-Amino-4-methylenecyclopentanecarboxylic acid (CAS 757942-64-6)
- 3H,4H-pyrrolo[1,2-d][1,2,4]triazin-4-one (CAS 37526-43-5)
- 1-(2,4-Dihydroxyphenyl)-2-(furan-2-yl)ethanone (CAS 452346-10-0)
- 2-Chloro-5-(naphthalen-1-yl)oxazole (CAS 1609377-51-6)
- 4,4′-di-tert-butylbiphenyl (CAS 1625-91-8)
- 2-Bromo-n-(2-ethoxyethyl)-4-methylbenzenesulfonamide (CAS 1216273-48-1)
- 2-(3-Fluorophenyl)-5-hydroxy-6-methoxy-4(1H)-quinolinone (CAS 1256037-41-8)
- 2-Methyl-7-nitro-3,4-dihydro-2H-benzo[b][1,4]thiazine (CAS 1822666-68-1)
- 2-Cyano-N-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)acetamide (CAS 545347-56-6)
- n-(5-Methylthiazol-2-yl)piperidine-3-carboxamide (CAS 1837883-78-9)
- (S)-1-(4-methoxy-3-methylphenyl)-2,2-dimethylpropan-1-amine (CAS 1390730-69-4)
- Peptide Impurity 24 (CAS CATO-CPTD788824)
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