5-Bromobenzene-1,2,4-triol CAS 98138-58-0
| CAS No. | 98138-58-0 |
| Molecular Formula | C6H5BrO3 |
| Molecular Weight | 205.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromobenzene-1,2,4-triol is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Bromobenzene-1,2,4-triol (CAS 98138-58-0), molecular formula C6H5BrO3 and molecular weight 205.01 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Bromobenzene-1,2,4-triol (C6H5BrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 205.01 g/mol, it falls into the medium-molecular-weight range. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H5BrO3 |
| Molecular Weight | 205.01 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
Related Bromobenzene Standards
- 5-Bromobenzene-1,2,3-triol (CAS 16492-75-4)
- 4-Bromobenzene-1,2,3-triol (CAS 17345-72-1)
- 2-Bromobenzene-1,3,5-triol (CAS 84743-77-1)
- 3-Bromobenzene-1,2,4-triol (CAS 99910-88-0)
- 3-bromobenzene-1,2-dicarbonitrile (CAS 76241-80-0)
- 5-Bromobenzene-1,2,3-triamine (CAS 1121586-23-9)
- methyl 3-bromobenzene-1-carboximidate (CAS 785719-23-5)
- 3-BROMOBENZENE-1-THIOL 3-BROMOBENZENETHIOL 3-BROMOPHENYL MERCAPTAN 3-BROMOTHIOPHENOL 6320-01-0 BC003193 M-BROMOBENZENETHIOL (CAS 6320-01-0)
Recommended Standards
- 5-Bromo-6-hydroxy-2-methylpyrimidin-4(1H)-one (CAS 4722-76-3)
- 5-Bromofuran-2-carbohydrazide (CAS 89282-37-1)
- 5-bromo-3-methyl-imidazole-4-carboxylic acid (CAS 773873-08-8)
- 5-bromo-N’-hydroxyfuran-2-carboximidamide (CAS 892387-31-4)
- Sodium 5-bromo-2-(1-hydroxypentyl)benzoate (CAS 1631152-53-8)
- Methyl 8-amino-5-thiaspiro[3.5]nonane-2-carboxylate hydrochloride (CAS 2137573-45-4)
- 2-Carbon-<SUP>13</SUP>C-ethoxythiophene-2-<SUP>13</SUP>C-3 sulfonyl chloride (CAS 1173018-95-5)
- Ethyl 3,4-dibromo-2-fluorobenzoate (CAS 1803776-91-1)
- (Z)-3-(3-Fluorophenyl)acrylaldehyde (CAS 213617-52-8)
- 1,3-Bis(1-methylcyclopropyl)urea (CAS 2044706-57-0)
- exo-9-Azabicyclo[3.3.1]nonan-3-ol (CAS 26651-94-5)
- Ethyl 5-bromo-6-methylpyrazine-2-carboxylate (CAS 2090914-30-8)
- 2-(Difluoromethyl)-3-iodo-5-methylpyridine-4-carbonyl chloride (CAS 1807139-12-3)
- Semaglutide Impurity 147 (CAS CATO-C4X-2226147)
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