6,8-Dibromo-4-oxo-4h-chromene-3-carboxylic acid CAS 76743-82-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 76743-82-3 |
| Molecular Formula | C10H4Br2O4 |
| Molecular Weight | 347.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
6,8-Dibromo-4-oxo-4h-chromene-3-carboxylic acid (CAS 76743-82-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C10H4Br2O4. Molecular weight: 347.94 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C10H4Br2O4 |
| Molecular Weight | 347.94 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1978 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 6,8-Dibromo-2-oxo-2H-chromene-3-carboxylic acid (CAS 3855-87-6)
- 6,8-Dibromo-4-oxo-4H-chromene-2-carboxylic acid (CAS 92057-41-5)
- 1,2-Dibromo-5-ethoxy-3-(trifluoromethyl)benzene (CAS 2384010-19-7)
- 4,5-Dibromo-2-(4-fluorophenyl)pyridazin-3(2H)-one (CAS 221031-01-2)
- 2,3-Dibromo-6,7-dimethoxyquinoxaline (CAS 1372142-07-8)
- 6,8-Dibromo-5-methylimidazo-[1,2-a]pyridine-2-carbohydrazide (CAS 1427460-65-8)
- Methyl 6,8-dibromo-2H-chromene-3-carboxylate (CAS 177496-81-0)
- (2,4-Dibromo-6-(difluoromethoxy)phenyl)(methyl)sulfane (CAS 1805121-02-1)
Recommended Standards
- 6-Bromo-3-iodoimidazo[1,2-a]pyridine-2-carbonitrile (CAS 2639815-30-6)
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- (6R,8R)-6-Bromo-8-iodoimidazo[1,2-a]pyridine-7-carbonitrile (CAS 2768871-01-6)
- 1-(Chloromethyl)-2-(trifluoromethoxy)benzene (CAS 116827-40-8)
- 2-Methyl-3-(5-methyl-3-(trifluoromethyl)-1h-pyrazol-1-yl)propanehydrazide (CAS 1005694-95-0)
- 2-chloro-9-(3-oxa-8-azabicyclo[3.2.1]octan-8-yl)-7H-purin-8-one (CAS 2646592-49-4)
- N,N-Diethyl-2-methoxy-N-methylethanaminium tetrafluoroborate (CAS 464927-72-8)
- 2,2',7-Tribromo-9,9'-spirobi[fluorene] (CAS 171408-77-8)
- tert-Butyl ethyl(1-(2-hydroxyethyl)pyrrolidin-3-yl)carbamate (CAS 1353966-42-3)
- Polymyxin B nonapeptide (CAS 86408-36-8)
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