4-Methoxy-N-(4-methoxyphenyl)-N-(4-nitrophenyl)aniline CAS 20440-91-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 20440-91-9 |
| Molecular Formula | C20H18N2O4 |
| Molecular Weight | 350.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methoxy-N-(4-methoxyphenyl)-N-(4-nitrophenyl)aniline (CAS 20440-91-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C20H18N2O4. Molecular weight: 350.37 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C20H18N2O4 |
| Molecular Weight | 350.37 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
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Recommended Standards
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- 8-Methoxythiochroman-4-one (CAS 66715-59-1)
- AB-005 Azepane Isomer (CAS 1445751-74-5)
- 4-Bromo-3-fluoro-5-methoxypyridine (CAS 1256825-73-6)
- 7-Bromo-4-chloro-5-fluorocinnoline (CAS 2759950-33-7)
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