3-Bromo-2-Hydroxybenzoic Acid CAS 3883-95-2
| CAS No. | 3883-95-2 |
| Molecular Formula | C7H5BrO3 |
| Molecular Weight | 217.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-2-Hydroxybenzoic Acid (CAS 3883-95-2) is a high-purity analytical reference standard with the molecular formula C7H5BrO3 and a molecular weight of 217.02 g/mol.
Structurally, 3-Bromo-2-Hydroxybenzoic Acid (C7H5BrO3) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 217.02 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 | C7H5BrO3 |
| Molecular Weight | 217.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
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Recommended Standards
- Crisaborole Impurity 44 (CAS 14348-38-0)
- (8-Methoxy-2-methylquinolin-5-yl)boronic acid (CAS 1107064-35-6)
- Crisaborole Impurity 43 (CAS 58380-11-3)
- (3-(3,5-Dimethylisoxazol-4-yl)phenyl)boronic acid (CAS 1201799-16-7)
- Benzhexol Impurity 1 (CAS 73-63-2)
- 2-Cyclopropoxy-3-iodopyridine (CAS 1643457-29-7)
- [(2,4-Difluorophenyl)methyl](propan-2-yl)amine (CAS 1021091-66-6)
- ((4-Aminopyrimidin-2-yl)thio)methyl acetate (CAS 61445-74-7)
- tert-Butyl (3-exo)-8-azabicyclo[3.2.1]octan-3-ylcarbamate hydrochloride (CAS 530135-00-3)
- 6-Pentafluoroethyl-5-trifluoromethyl-pyridin-2-ylamine (CAS 1246466-70-5)
- 2-(2-Ethoxyphenoxy)aniline (CAS 946714-34-7)
- 3-(Azetidin-1-yl)-4-bromo-1-methyl-1H-pyrazole (CAS 1619993-45-1)
- Sodium 4-(bis(4-(benzyl(ethyl)amino)phenyl)methyl)benzene-1,3-disulfonate (CAS 93805-03-9)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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