1,4,5,8-Tetraamino-2-bromo-7-phenoxyanthracene-9,10-dione CAS 88603-02-5
| CAS No. | 88603-02-5 |
| Molecular Formula | C20H15BrN4O3 |
| Molecular Weight | 439.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1,4,5,8-Tetraamino-2-bromo-7-phenoxyanthracene-9,10-dione (CAS 88603-02-5), molecular formula C20H15BrN4O3 and molecular weight 439.26 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution, 1,4,5,8-Tetraamino-2-bromo-7-phenoxyanthracene-9,10-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 439.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C20H15BrN4O3 |
| Molecular Weight | 439.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Tetraamino Standards
- 1,4,5,8-Tetraamino-2-bromo-6-phenoxyanthracene-9,10-dione (CAS 88601-88-1)
- 1,4,5,8-Tetraamino-2,7-bis(pentyloxy)anthracene-9,10-dione (CAS 88601-65-4)
- 1,4,5,8-Tetraamino-2,7-bis(2-ethoxyethoxy)anthracene-9,10-dione (CAS 88601-72-3)
- 1,4,5,8-Tetraamino-2,7-bis(3-methoxypropoxy)anthracene-9,10-dione (CAS 88601-74-5)
- 1,4,5,8-Tetraamino-2,7-bis(butylthio)anthracene-9,10-dione (CAS 88605-75-8)
- 1,4,5,8-Tetraamino-2-bromo-7-(pentyloxy)anthracene-9,10-dione (CAS 88603-41-2)
- 1,4,5,8-Tetraamino-2-(butylthio)-7-phenoxyanthracene-9,10-dione (CAS 88605-79-2)
- 1,4,5,8-Tetraamino-2,7-diphenoxyanthracene-9,10-dione (CAS 88600-56-0)
Recommended Standards
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-bromonicotinic acid (CAS 2243508-00-9)
- (2Z)-N-(2,4-Difluorophenyl)-4,4,4-trifluoro-3-oxo-2-{2-[3-(trifluoromethyl)phenyl]hydrazin-1-ylidene}butanamide (CAS 866131-01-3)
- 4-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-5-bromonicotinic acid (CAS 2243511-76-2)
- N-(4-(1H-Benzo[d]imidazol-2-yl)phenyl)-2-iodobenzamide (CAS 476634-22-7)
- 3-Bromo-2,5-dimethylpyrazolo[1,5-c]pyrimidine (CAS 35833-97-7)
- 5-Methylfuran-2-sulfonyl chloride (CAS 69815-95-8)
- 2-Phenylimidazo[1,2-a]pyridine-6-carboxylic acid (CAS 1027-01-6)
- N-Ethyl-4-nitro-N-phenylaniline (CAS 51451-83-3)
- 6-Bromo-N-(4-methylbenzyl)hexanamide (CAS 1407521-90-7)
- 2-Fluoro-5-(1-methyl-1h-pyrazol-4-yl)benzoic acid (CAS 1179041-10-1)
- Copper, [μ-[N-[[2-(diphenylphosphino-κP)phenyl]methylene]-3-methyl-L-valinato-κN:κO]](1,1,1-trifluoromethanesulfonato-κO)di- (CAS 1069133-80-7)
- 2-(Aminomethyl)-4-(difluoromethyl)-6-fluoro-3-iodopyridine (CAS 1807096-92-9)
- n-{2-[(2-aminophenyl)formamido]ethyl}acetamide (CAS 1155984-88-5)
- Liraglutide Impurity 28 (CAS CATO-C4X-199228)
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