1,4-Diamino-2-(4-methoxyphenyl)anthracene-9,10-dione CAS 1573-83-7
| CAS No. | 1573-83-7 |
| Molecular Formula | C21H16N2O3 |
| Molecular Weight | 344.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,4-Diamino-2-(4-methoxyphenyl)anthracene-9,10-dione (CAS 1573-83-7) is a high-purity analytical reference standard with the molecular formula C21H16N2O3 and a molecular weight of 344.36 g/mol.
Based on its molecular formula C21H16N2O3, 1,4-Diamino-2-(4-methoxyphenyl)anthracene-9,10-dione contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 344.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C21H16N2O3 |
| Molecular Weight | 344.36 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Diamino Standards
- 4,4'-Diamino-[1,1'-biphenyl]-2,2'-disulfonic acid(contains 30% Water at maximum) (CAS 117-61-3)
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- 2,6-Diamino-4-(2,3,4-trimethoxyphenyl)-4H-thiopyran-3,5-dicarbonitrile (CAS 333759-74-3)
- (4,4'-diamino-[1,1'-biphenyl]-3,3'-diyl)bis(phosphonic acid) (CAS CATO-C3D-262416)
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Recommended Standards
- Hierochin D (CAS 155759-02-7)
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- H-Ile-NHOH (CAS 31982-77-1)
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- 9-[3-(methylamino)propyl]-9H-purin-6-amine trihydrochloride (CAS 1909327-99-6)
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