5-(3,4-dimethoxyphenyl)-1H-pyrazol-3-amine CAS 208519-08-8
| CAS No. | 208519-08-8 |
| Molecular Formula | C11H13N3O2 |
| Molecular Weight | 219.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-(3,4-dimethoxyphenyl)-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.
5-(3,4-dimethoxyphenyl)-1H-pyrazol-3-amine (CAS 208519-08-8) is a high-purity analytical reference standard with the molecular formula C11H13N3O2 and a molecular weight of 219.24 g/mol.
Based on its molecular formula C11H13N3O2, 5-(3,4-dimethoxyphenyl)-1H-pyrazol-3-amine contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 219.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C11H13N3O2 |
| Molecular Weight | 219.24 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Nitrogen Atoms | 3 |
Related dimethoxyphenyl Standards
- 5-(3,4-Dimethoxyphenyl)-3-methyl-1H-1,2,4-triazole (CAS 1094483-83-6)
- 3-(3,5-Dimethoxyphenyl)-1H-pyrazol-4-amine (CAS 1710854-02-6)
- 2-(3,4-Dimethoxyphenyl)-3-oxobutanenitrile (CAS 18133-46-5)
- 3-(2,5-Dimethoxyphenyl)-1H-pyrazol-5-amine hydrochloride (CAS 501902-79-0)
- 4-(2,4-Dimethoxyphenyl)-1H-pyrazol-3-amine (CAS 909858-12-4)
- 4-(3,4-Dimethoxyphenyl)-1H-pyrazol-3-amine (CAS 278600-50-3)
- 5-(3,4-Dimethoxyphenyl)-2-methyloxazole (CAS 22796-22-1)
- 5-(3,5-Dimethoxyphenyl)-1H-pyrazol-3-amine (CAS 569655-99-8)
Recommended Standards
- 5-(2-Ethoxyphenyl)-3-hydrazono-2,3-dihydro-1H-1,2,4-triazole (CAS 299440-08-7)
- 5-(1,3-Dioxan-2-yl)-1H-indazol-3-amine (CAS 218301-24-7)
- 5-((Dimethylamino)methyl)-1H-indazole-3-carboxylic acid (CAS 865887-01-0)
- 5-(4-Aminobenzyl)-3-ethyl-1,3,4-oxadiazol-2(3H)-one (CAS 689251-70-5)
- tert-Butyl(2-bromo-5-chlorophenyl)carbamate (CAS 384793-17-3)
- Ethyl 2-hydroxy-3-oxobutanoate (CAS 15863-59-9)
- 4-(Methylselanyl)-2-oxobutanoic acid (CAS 122651-70-1)
- 6-Bromo-2,4-dichloroquinoline, 97% (CAS 406204-90-8)
- imidazo[1,2-a]pyrazine-8-thiol (CAS 95186-06-4)
- 3-{[(benzyloxy)carbonyl]amino}-3-methylbutanoic acid (CAS 51219-55-7)
- trans-Dibromobis(triphenylphosphine)palladium(II) (CAS 22180-53-6)
- 2,3,4,6,7,8,9,10-Octahydropyrimido[1,2-a]azepine 2-(9-oxo-9H-xanthen-2-yl)propanoate (CAS 1346753-05-6)
- 6-Bromo-3-chloro-2,4-difluorophenol (CAS 1826110-17-1)
- Exenatide Acetate (CAS 141732-76-5)
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