1-(2-Methoxyphenyl)-1H-pyrazol-3-amine CAS 90840-02-1
| CAS No. | 90840-02-1 |
| Molecular Formula | C10H11N3O |
| Molecular Weight | 189.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(2-Methoxyphenyl)-1H-pyrazol-3-amine (CAS 90840-02-1) is a high-purity analytical reference standard with the molecular formula C10H11N3O and a molecular weight of 189.21 g/mol.
Structurally, 1-(2-Methoxyphenyl)-1H-pyrazol-3-amine (C10H11N3O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 189.21 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 1-(2-Methoxyphenyl)-1H-pyrazol-3-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 | C10H11N3O |
| Molecular Weight | 189.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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.) | 1982 |
| Nitrogen Atoms | 3 |
Related Methoxyphenyl Standards
- 4-(4-Methoxyphenyl)-3-oxobutanenitrile (CAS 103986-01-2)
- 4-(2-methoxyphenyl)-4-oxobutanenitrile (CAS 113522-19-3)
- 5-(3-Methoxyphenyl)-3-methyl-1H-1,2,4-triazole (CAS 1152849-91-6)
- 1-(3-Methoxyphenyl)-1H-pyrazol-5-amine (CAS 14679-00-6)
- 3-(2-Methoxyphenyl)pyrazol-5-amine (CAS 149246-82-2)
- 1-(4-Methoxyphenyl)-1H-pyrazol-5-amine (CAS 16907-09-8)
- 1-(3-Methoxyphenyl)-1h-imidazol-2-amine (CAS 1698808-34-2)
- 1-(2-Methoxyphenyl)-1H-imidazol-2-amine (CAS 1703011-74-8)
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