1,8-Dihydroxy-4,5-bis(phenylamino)anthracene-9,10-dione CAS 71873-61-5
| CAS No. | 71873-61-5 |
| Molecular Formula | C26H18N2O4 |
| Molecular Weight | 422.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,8-Dihydroxy-4,5-bis(phenylamino)anthracene-9,10-dione (CAS 71873-61-5) is a high-purity analytical reference standard with the molecular formula C26H18N2O4 and a molecular weight of 422.43 g/mol.
The molecular framework of 1,8-Dihydroxy-4,5-bis(phenylamino)anthracene-9,10-dione (C26H18N2O4) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), 1,8-Dihydroxy-4,5-bis(phenylamino)anthracene-9,10-dione 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.
Physical & Chemical Properties
| Molecular Formula | C26H18N2O4 |
| Molecular Weight | 422.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 2 |
Related Dihydroxy Standards
- 1,5-Dihydroxy-4,8-bis(phenylamino)anthracene-9,10-dione (CAS 25632-28-4)
- 5,7-Dihydroxy-2-(4-methoxy-3,5-bis(3-methylbut-2-en-1-yl)phenyl)chroman-4-one (CAS 887594-71-0)
- (3α,5 β,7α)-3,7-Dihydroxy-12-oxocholan-24-oic Acid Methyl Ester (CAS 10538-64-4)
- (3α,5β,12α)-3,12-Dihydroxy-7-oxocholan-24-oic acid methyl ester (CAS 10538-65-5)
- 3,3'-Dihydroxy-1H,1'H-[2,2'-biindole]-5,5'-disulfonic acid (CAS 28286-71-7)
- 1,8-Dihydroxy-4-((4-hydroxyphenethyl)amino)-5-nitroanthracene-9,10-dione (CAS 15791-78-3)
- 1,8-Dihydroxy-4-((2-(2-hydroxyethyl)phenyl)amino)-5-nitroanthracene-9,10-dione (CAS 82457-17-8)
- 1,25-Dihydroxy Vitamin D3 ,D3 (CAS 128726-16-0)
Recommended Standards
- 2,2'-(1,3-Phenylenedisulfonyl)bis(benzene-1,4-diol) (CAS 29624-68-8)
- (S)-11-DImethoxymethyl-4-ethyl-4-hydroxy-1,12-dihydro-4h-2-oxa-6,12a-diaza-dibenzo[b,h]fluorene-3,13-dione (CAS 84017-99-2)
- 2,3-Bis(2-ethoxyethoxy)quinoxaline-5,8-diyl diacetate (CAS 2452-34-8)
- 1,4-Bis((4-hydroxyphenyl)amino)anthracene-9,10-dione (CAS 15939-83-0)
- 4-[(2-Chlorophenyl)sulfanyl]-2-{[(4-methylphenyl)methyl]sulfanyl}-5,6,7,8-tetrahydroquinazoline (CAS 339018-81-4)
- 4-(2H-1,3-benzodioxol-5-yl)-2-methyl-5-(2-methylcyclopropyl)-2,3-dihydro-1H-pyrazol-3-imine (CAS 1355785-92-0)
- Fmoc-Thr(OtBu)-Ol (CAS 189337-28-8)
- 5-fluoro-1-N-propylbenzene-1,2-diamine (CAS 1072928-93-8)
- 3-Methyl-2-((2-oxo-2-(thiophen-2-yl)ethyl)thio)-1H-imidazol-3-ium bromide (CAS 303051-26-5)
- 7-Iodo-1H-indazole-3-carboxylic acid (CAS 1260657-38-2)
- 3-[3,4-Bis(Ethoxymethoxy)phenyl]-1-[2-hydroxy-4,6-bis(ethoxymethoxy)phenyl]-2-propen-1-one (CAS 1076199-11-5)
- NBD-C6-HPC, 90% (CAS 81005-34-7)
- 1-Iodo-4-(p-tolyloxy)benzene (CAS 1017793-91-7)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
Why CATO?
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