6,8-Dibromo-2H-chromen-2-one CAS 21524-15-2
| CAS No. | 21524-15-2 |
| Molecular Formula | C9H4Br2O2 |
| Molecular Weight | 303.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6,8-Dibromo-2H-chromen-2-one.
6,8-Dibromo-2H-chromen-2-one (CAS 21524-15-2) is a high-purity analytical reference standard with the molecular formula C9H4Br2O2 and a molecular weight of 303.93 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 6,8-Dibromo-2H-chromen-2-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 303.93 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 6,8-Dibromo-2H-chromen-2-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H4Br2O2 |
| Molecular Weight | 303.93 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
Related Dibromo Standards
- 3,6-Dibromo-4H-chromen-4-one (CAS 115237-39-3)
- 3,7-Dibromo-4H-chromen-4-one (CAS 1159978-70-7)
- 3,7-Dibromo-2H-chromen-2-one (CAS 1220702-33-9)
- 4,5-Dibromo-3-fluorothiophene-2-carboxylic acid (CAS 1628447-64-2)
- 2,2-Dibromo-1H-indene-1,3(2H)-dione (CAS 1685-97-8)
- 3,6-Dibromo-2H-chromen-2-one (CAS 58309-97-0)
- 4,7-Dibromo-1H-pyrrolo[3,2-c]pyridine-3-carbaldehyde (CAS 1000341-95-6)
- 6,8-Dibromo-3,4-dihydroquinazolin-4-one (CAS 17518-85-3)
Recommended Standards
- dimethyl 2,3-dibromobutanedioate (CAS 51575-86-1)
- 2,5-Dibromohexanedioic Acid (CAS 3479-85-4)
- Ethane-1,2-diyl bis(2-bromoacetate) (CAS 3785-34-0)
- 5-Bromo-4-(4-bromo-1h-pyrazol-1-yl)pyrimidine (CAS 1501562-91-9)
- N1,N2-Bis(1,3-dihydroxy-2-methylpropan-2-yl)oxalamide (CAS 80649-01-0)
- 1,4-Dimethyl-1H-benzo[d]imidazol-2-amine (CAS 1467571-43-2)
- Ethyl 5-bromo-2-fluoro-3-iodobenzoate (CAS 1541047-38-4)
- 2-(3-(1H-pyrrol-1-yl)thiophene-2-carbonyl)-N-(3-chlorophenyl)hydrazine-1-carboxamide (CAS 478062-86-1)
- 73463-39-5 CAPSO MFCD00041778 3-(cyclohexylamino)-1-hydroxypropane-1-sulfonic acid 3-(Cyclohexylamino)-2-hydroxy-1-propanesulfonic acid (CAS 73463-39-5)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com