3-Bromonaphthalene-1,2-dione CAS 7474-83-1
| CAS No. | 7474-83-1 |
| Molecular Formula | C10H5BrO2 |
| Molecular Weight | 237.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Bromonaphthalene-1,2-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.
3-Bromonaphthalene-1,2-dione (CAS 7474-83-1) is a high-purity analytical reference standard with the molecular formula C10H5BrO2 and a molecular weight of 237.05 g/mol.
Based on its molecular formula C10H5BrO2, 3-Bromonaphthalene-1,2-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 237.05 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), 3-Bromonaphthalene-1,2-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 | C10H5BrO2 |
| Molecular Weight | 237.05 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Br-containing |
Related Bromonaphthalene Standards
- 5-Bromonaphthalene-1,4-dione (CAS 62784-48-9)
- 6-Bromonaphthalene-1,2-dione (CAS 6954-48-9)
- 6-Bromonaphthalene-1,4-dione (CAS 71127-64-5)
- 8-Bromonaphthalene-1,2-dione (CAS 54808-23-0)
- 6-Bromonaphthalene-2-methanol, 97% (CAS 100751-63-1)
- 1-Bromonaphthalene-2-methanol (CAS 76635-70-6)
- 6-Bromonaphthalene-1,2-diamine (CAS 1241377-74-1)
- 1-Bromonaphthalene-2,7-diamine (CAS 1823980-89-7)
Recommended Standards
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- 5-Bromo-2,2,5-trimethyl-1,3-dioxane-4,6-dione (CAS 34817-42-0)
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