4-Bromo-2-methoxy-5-nitrobenzoic acid CAS 98434-33-4
| CAS No. | 98434-33-4 |
| Molecular Formula | C8H6BrNO5 |
| Molecular Weight | 276.04 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-methoxy-5-nitrobenzoic acid.
4-Bromo-2-methoxy-5-nitrobenzoic acid (CAS 98434-33-4), molecular formula C8H6BrNO5 and molecular weight 276.04 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Bromo-2-methoxy-5-nitrobenzoic acid (C8H6BrNO5) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-Bromo-2-methoxy-5-nitrobenzoic acid 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 | C8H6BrNO5 |
| Molecular Weight | 276.04 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 |
| 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.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 3-Bromo-4-methoxy-5-nitrobenzoic acid (CAS 954815-08-8)
- 5-Bromo-2-methoxy-3-nitrobenzoic acid (CAS 60541-89-1)
- 2-Bromo-6-hydroxy-5-methoxy-3-nitrobenzaldehyde (CAS 205652-99-9)
- 6-Bromo-2-(difluoromethyl)pyrido[3,2-d]pyrimidin-4(3H)-one (CAS 2692637-87-7)
- 6-Bromo-7-chloroimidazo[1,2-a]pyridine (CAS 1303890-45-0)
- Azido-PEG3-amide-C3-triethoxysilane (CAS 2243566-43-8)
- 5-Heptylresorcinol (CAS 500-67-4)
- 1-Iodo-4-phenylbicyclo[2.2.2]octane (CAS 55044-15-0)
- Cyclopentyl(o-tolyl)methanamine (CAS 1178650-86-6)
- 3,5-Dichloro-4-methylpyridine (CAS 100868-46-0)
- 2-(3-Fluoro-2,4,6-trimethylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1809298-89-2)
- 4-(2-Fluoro-5-methoxyphenyl)-4,5,6,7-tetrahydro-1H-imidazo[4,5-c]pyridine (CAS 1010915-36-2)
- 2,2,4,7-Tetramethyl-2,3-dihydrobenzofuran-5,6-dione (CAS 205758-64-1)
- Semaglutide (CAS 910463-68-2（free base）)
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