2,2'-((9,10-Dioxo-9,10-dihydroanthracene-1,5-diyl)bis(azanediyl))dibenzoic acid CAS 81-78-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 81-78-7 |
| Molecular Formula | C28H18N2O6 |
| Molecular Weight | 478.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,2'-((9,10-Dioxo-9,10-dihydroanthracene-1,5-diyl)bis(azanediyl))dibenzoic acid (CAS 81-78-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C28H18N2O6. Molecular weight: 478.45 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C28H18N2O6 |
| Molecular Weight | 478.45 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Dioxo Standards
- Ethyl 4,6-dioxo-1-(phenylcarbamoyl)-5-[3-(trifluoromethyl)phenyl]-1H,3aH,4H,5H,6H,6aH-pyrrolo[3,4-c]pyrazole-3-carboxylate (CAS 318237-86-4)
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- (((9,10-Dioxo-9,10-dihydroanthracene-2,6-diyl)bis(oxy))bis(propane-3,1-diyl))diphosphonic acid (CAS 2370885-23-5)
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Recommended Standards
- 1-(3,4-Dihydroxyphenyl)-3-((2R,3R,4aR,6R,7S,8S,8aR)-2-(3,4-dihydroxyphenyl)-7,8-dihydroxy-6-(hydroxymethyl)hexahydro-6H-pyrano[2,3-b][1,4]dioxin-3-yl)propan-1-one (CAS 229971-57-7)
- 9,10-Bis(diethylphosphonomethyl)anthracene (CAS 60974-92-7)
- (E)-4-(3-((5-(4-Nitrophenyl)furan-2-yl)methylene)-2-oxo-5-phenyl-2,3-dihydro-1H-pyrrol-1-yl)benzoic Acid (CAS 328998-25-0)
- 2-(Furan-2-yl)quinoxalin-5-ol (CAS 59649-57-9)
- 2-((2Z,5E)-5-(((3AR,8BR)-4-(4-(2,2-DIPHENYLVINYL)PHENYL)-1,2,3,3A,4,8B-HEXAHYDROCYCLOPENTA[B]INDOL-7-YL)METHYLENE)-3'-ETHYL-4,4'-DIOXO-2'-THIOXO-3',4,4',5-TETRAHYDRO-2'H,3H-[2,5'-BITHIAZOLYLIDENE]-3-YL)ACETIC ACID 786643-20-7 W-6117 (CAS 786643-20-7)
- 4-Bromo-3-propyl-1H-pyrazole (CAS 60061-61-2)
- 2-(4-Acetyl-6-formylpyridin-2-yl)acetic acid (CAS 1393583-12-4)
- (E)-5-Ethoxy-4-methyl-2-(4-methylbenzylidene)-2H-pyrrole (CAS 61809-96-9)
- Methyl 1-(benzyloxy)-7-chloro-4-hydroxy-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxylate (CAS 1956371-75-7)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com