2-Amino-4-bromo-6-nitrophenol CAS 139138-08-2
| CAS No. | 139138-08-2 |
| Molecular Formula | C6H5BrN2O3 |
| Molecular Weight | 233.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Amino-4-bromo-6-nitrophenol (CAS 139138-08-2), a certified reference material (molecular formula C6H5BrN2O3, MW 233.02 g/mol) for analytical method development and quality control.
2-Amino-4-bromo-6-nitrophenol (C6H5BrN2O3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 2-Amino-4-bromo-6-nitrophenol 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 | C6H5BrN2O3 |
| Molecular Weight | 233.02 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Amino Standards
- 2-Amino-6-bromo-4-nitrophenol (CAS 185335-67-5)
- 2-Amino-3-bromo-5-nitrophenol (CAS 915156-09-1)
- 2-Amino-5-bromo-3-nitrophenol (CAS 867338-56-5)
- 5-Amino-2-bromo-4-nitrophenol (CAS 855836-08-7)
- 4-Amino-3-bromo-2,5-difluorobenzonitrile (CAS 112279-62-6)
- 2-amino-5-bromo-3,6-difluorobenzonitrile (CAS 1548512-18-0)
- 3-Amino-4-bromo-2,6-difluorobenzonitrile (CAS 946817-63-6)
- 2-Amino-5-bromo-4-fluorobenzamide (CAS 1206969-09-6)
Recommended Standards
- 2-Bromo-3-methoxy-5-nitropyridine (CAS 1353101-84-4)
- 5-Bromo-3-methoxy-2-nitropyridine (CAS 152684-26-9)
- 3,5-Diamino-6-bromo-pyrazine-2-carboxylic acid (CAS 1303968-25-3)
- 5-Bromo-2-methoxy-3-nitropyridine, 97% (CAS 152684-30-5)
- (R)-2-(1-aminoethyl)benzonitrile (CAS 1213885-82-5)
- N-[(1-Boc-4-piperidyl)methyl]pyrimidin-2-amine (CAS 1420889-45-7)
- 1-(tert-Butoxycarbonyl)-3,3-difluoro-4-methylpiperidine-4-carboxylic acid (CAS 1334414-61-7)
- 5-Fluoro-2,3-dihydrobenzofuran-3-acetic Acid (CAS 1541324-83-7)
- 1-Phenyl-1H-pyrazole-4-boronic acid (CAS 1201643-70-0)
- 5-(Bromomethyl)isobenzofuran-1(3H)-one (CAS 63113-10-0)
- 2,2,6,6-Tetrachlorocyclohexanol (CAS 56207-45-5)
- 5-Bromo-2-(pyridin-4-ylmethyl)pyridazin-3(2h)-one (CAS 2251053-62-8)
- n'-Methylisobutyrohydrazonamide (CAS 81327-53-9)
- Des-Ile17-Tirzepatide (CAS CATO-CPTD788956)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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