4-bromo-2,6-dinitrophenol CAS 40466-95-3
| CAS No. | 40466-95-3 |
| Molecular Formula | C6H3BrN2O5 |
| Molecular Weight | 263.00 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 4-bromo-2,6-dinitrophenol.
CATO supplies 4-bromo-2,6-dinitrophenol (CAS 40466-95-3), a certified reference material (molecular formula C6H3BrN2O5, MW 263.00 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H3BrN2O5, 4-bromo-2,6-dinitrophenol contains a carbohydrate-derived structure, an amide group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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-bromo-2,6-dinitrophenol 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 | C6H3BrN2O5 |
| Molecular Weight | 263.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related bromo Standards
- Ethyl 2-bromo-4,4,4-trifluoro-3-oxobutanoate (CAS 4544-43-8)
- 2-Bromo-3-fluoro-6-nitrobenzamide (CAS 1093204-16-0)
- 2-Bromo-5-Fluoroterephthalic acid (CAS 1245807-64-0)
- 3-Bromo-4-fluoro-5-nitrobenzamide (CAS 1345471-86-4)
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- 2-Bromo-6-fluoro-3-nitrobenzamide (CAS 1805593-34-3)
Recommended Standards
- 4-Bromobenzoselenoamide (CAS 68090-02-8)
- Bis[1-(Dimethylamino-κN)-2-propanolato-κO]nickel (CAS 200284-92-0)
- 2-Bromo-butan-2-ylboronic acid pinacol ester (CAS 2379550-54-4)
- Eltrombopag Impurity 55 (CAS 2316-50-9)
- 1-((4-Methylthiazol-2-yl)amino)pyrrolidine-2,5-dione (CAS 528592-46-3)
- 1-(3-(Pyridin-3-yl)-2,5-dihydro-1H-pyrrol-1-yl)ethanone (CAS 929083-42-1)
- 2-Amino-5-(difluoromethyl)-3-(trifluoromethyl)isonicotinic acid (CAS 1806019-20-4)
- (2,5-Dioxo-hexahydro-imidazo[4,5-d]-imidazol-1-yl)-acetic acid (CAS 3553-20-6)
- (2R,3R,5S)-2-(6-(Dimethylamino)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3-ol (CAS 3608-59-1)
- Letermovir Impurity 71 (CAS CATO-C4X-291571)
- Tert-butyl2-(p-tolylsulfonyloxymethyl)-6,7-dihydro-4h-pyrazolo[1,5-a]pyrazine-5-carboxylate (CAS 2306274-60-0)
- Fasudil Impurity 25 (CAS CATO-C4X-136525)
- 1-Chloro-4-(thiophen-2-yl)phthalazine, 97% (CAS 124959-34-8)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
Why CATO?
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