5,6-Dibromohexahydro-4,7-epoxyisobenzofuran-1,3-dione CAS 51371-59-6
| CAS No. | 51371-59-6 |
| Molecular Formula | C8H6Br2O4 |
| Molecular Weight | 325.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5,6-Dibromohexahydro-4,7-epoxyisobenzofuran-1,3-dione is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5,6-Dibromohexahydro-4,7-epoxyisobenzofuran-1,3-dione (CAS 51371-59-6) is a high-purity analytical reference standard with the molecular formula C8H6Br2O4 and a molecular weight of 325.94 g/mol.
Based on its molecular formula C8H6Br2O4, 5,6-Dibromohexahydro-4,7-epoxyisobenzofuran-1,3-dione contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 325.94 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 5,6-Dibromohexahydro-4,7-epoxyisobenzofuran-1,3-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 | C8H6Br2O4 |
| Molecular Weight | 325.94 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Br-containing |
Related Dibromohexahydro Standards
Recommended Standards
- 4-Bromo-2-(bromodifluoromethyl)-1H-benzo[d]imidazole (CAS 2366994-44-5)
- 6-Bromo-3-(2-bromoethoxy)-2-nitropyridine (CAS 959992-61-1)
- 3,5-Dibromo-2,4-dihydroxy-6-methylbenzoic acid (CAS 92455-24-8)
- Methyl 3,5-dibromo-2,4-dihydroxybenzoate (CAS 885279-78-7)
- Perindopril Impurity 19 (CAS 145513-34-4)
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- Nomega-Nitro-L-arginine 4-nitroanilide hydrobromide (CAS 85697-89-8)
- 6-(3-Hydroxyazetidine-1-carbonyl)pyridazin-3(2H)-one (CAS 1341543-50-7)
- (S)-2-(2-bromo-6-chlorophenyl)-2-(methylamino)ethan-1-ol (CAS 1259617-93-0)
- 3-(2-Hydroxy-3-methoxy-propoxy)-benzoic acid (CAS 3478-07-7)
- (2S,4R)-1-(tert-butoxycarbonyl)-4-(naphthalen-2-ylmethoxy)pyrrolidine-2-carboxylic acid (CAS 630425-40-0)
- 2-[(propan-2-ylcarbamoyl)amino]benzoic acid (CAS 69145-57-9)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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