1-Amino-4-(p-tolylamino)anthracene-9,10-dione CAS 39774-73-7
| CAS No. | 39774-73-7 |
| Molecular Formula | C21H16N2O2 |
| Molecular Weight | 328.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-Amino-4-(p-tolylamino)anthracene-9,10-dione (C21H16N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1-Amino-4-(p-tolylamino)anthracene-9,10-dione (CAS 39774-73-7) is a high-purity analytical reference standard with the molecular formula C21H16N2O2 and a molecular weight of 328.36 g/mol.
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 | C21H16N2O2 |
| Molecular Weight | 328.36 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.) | 1968 |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 2-Amino-4-(4-methoxyphenyl)-4H-benzo[h]chromene-3-carbonitrile (CAS 119825-06-8)
- 2-Amino-4-(3-methoxyphenyl)-4h-benzo[h]chromene-3-carbonitrile (CAS 149550-57-2)
- 1-Amino-2-(p-tolylamino)anthracene-9,10-dione (CAS 60190-22-9)
- 1-Amino-4-(m-tolylamino)anthracene-9,10-dione (CAS 60683-36-5)
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Recommended Standards
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- 1,2-Bis(2-bromophenyl)disulfane (CAS 71112-91-9)
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- 2,3-Dimethoxy-6-fluorobenzyl alcohol (CAS 1260814-69-4)
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- tert-Butyl 3-((2-amino-N-methylacetamido)methyl)piperidine-1-carboxylate (CAS 1353957-34-2)
- Boc-(R)-gama-benzyl-L-proline (CAS 153074-95-4)
- 4-Bromo-N-(tert-butyl)-2,6-dimethylbenzenesulfonamide (CAS 1704121-94-7)
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- 2,5-Difluoro-4-(trifluoromethyl)pyridine (CAS 1349716-18-2)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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