4-Bromoacenaphthylene-1,2-dione CAS 43017-97-6
| CAS No. | 43017-97-6 |
| Molecular Formula | C12H5BrO2 |
| Molecular Weight | 261.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Bromoacenaphthylene-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.
4-Bromoacenaphthylene-1,2-dione (CAS 43017-97-6), molecular formula C12H5BrO2 and molecular weight 261.07 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 4-Bromoacenaphthylene-1,2-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 261.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 4-Bromoacenaphthylene-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 | C12H5BrO2 |
| Molecular Weight | 261.07 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | Br-containing |
Related Bromoacenaphthylene Standards
Recommended Standards
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- 2-(2-Methoxynaphthalen-1-yl)-1H-indene-1,3(2H)-dione (CAS 27721-87-5)
- 1-(6-(Furan-2-yl)pyridin-3-yl)-N-methylmethanamine (CAS 886851-44-1)
- ethyl 3-methyl-2,4-dioxo-1H-pyrimidine-5-carboxylate (CAS 154942-22-0)
- 5-bromo-4-chloro-6-methylthieno[2,3-d]pyrimidine (CAS 1388892-94-1)
- Des-Pro-Pro-Tirzepatide (CAS CATO-CPTD788696)
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