Bicyclo[3.3.0]octane-2,4,6,8-tetracarboxylicdianhydride CAS 4945-72-6
| CAS No. | 4945-72-6 |
| Molecular Formula | C12H10O6 |
| Molecular Weight | 250.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Bicyclo[3.3.0]octane-2,4,6,8-tetracarboxylicdianhydride (CAS 4945-72-6), molecular formula C12H10O6 and molecular weight 250.20 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H10O6, Bicyclo[3.3.0]octane-2,4,6,8-tetracarboxylicdianhydride contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 250.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H10O6 |
| Molecular Weight | 250.20 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
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Recommended Standards
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- 6,7-Dimethoxy-2-oxo-2H-chromene-3-carboxylic acid (CAS 86100-68-7)
- Ethyl 7,8-dihydroxy-2-oxo-2H-chromene-3-carboxylate (CAS 810676-31-4)
- 2-Oxo-1-[3-(trifluoromethyl)benzyl]-1,2-dihydro-3-pyridinecarbohydrazide (CAS 242797-51-9)
- [1,2,5]Oxadiazolo[3,4-d]pyrimidine-5,7-diamine (CAS 30745-07-4)
- Isoadhumulone (CAS 25422-83-7)
- 2-Bromo-1-(4-methyl-2-(4-(trifluoromethyl)phenyl)thiazol-5-yl)ethan-1-one (CAS 845885-81-6)
- N-methyl-2-phenoxyethanamine (CAS 37421-04-8)
- 4-chloro-6-fluoro-1H-indole-2-carboxylic acid (CAS 383133-62-8)
- 3-(4-Fluorophenyl)-3-(methylamino)butanoic acid (CAS 1463521-26-7)
- N-((1R)-1-(2,5-Difluorophenyl)-2-(oxiran-2-yl)ethyl)-2-methylpropane-2-sulfonamide (CAS 1887746-46-4)
- Atropine Impurity N5 (CAS 138-12-5)
- Vialox Peptide(Pentapeptide-3) (CAS 135679-88-8)
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