5(6)-Carboxyeosin diacetate CAS 161338-87-0
| CAS No. | 161338-87-0 |
| Molecular Formula | 2*C25H12Br4O9 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5(6)-Carboxyeosin diacetate is closely related to a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5(6)-Carboxyeosin diacetate (CAS 161338-87-0), molecular formula C25H12Br4O9 and molecular weight 775.98 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5(6)-Carboxyeosin diacetate (C25H12Br4O9) is characterized by a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 5(6)-Carboxyeosin diacetate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | 2*C25H12Br4O9 |
| Molecular Weight | 775.98 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Br-containing |
Recommended Standards
- 4-(1H-Benzimidazol-2-yl)-1-(4-ethoxyphenyl)pyrrolidin-2-one (CAS 615281-70-4)
- 3,3-DIiodo-1,1,1-trifluoroacetone (CAS 644994-86-5)
- 3-Bromo-4,5-dimethyl-1,2-oxazole (CAS 903130-90-5)
- 6-Amino-2-thioxo-1-(m-tolyl)-2,3-dihydropyrimidin-4(1h)-one (CAS 347319-41-9)
- Methyl 6-bromopyrrolo[1,2-c]pyrimidine-3-carboxylate (CAS 1300034-69-8)
- 6-(3-(Pyridin-3-yl)-1,2,4-oxadiazol-5-yl)-4,5-dihydropyridazin-3(2H)-one (CAS 1261001-68-6)
- 1-(4-fluorophenyl)-4,4-dimethoxy-2-methylbutan-2-ol (CAS 130723-18-1)
- (5,5-Difluoropiperidin-3-yl)methanol hydrochloride (CAS 1356338-73-2)
- N,N-Diethyl-3-(3-pyrrolidinyloxy)anilinehydrochloride (CAS 1219979-46-0)
- Hexapeptide-10 (CAS 146439-94-3)
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 18665070610 / Nicole.chen@cato-chem.com