3,5-dibromo-4-ethylbenzoic acid CAS 1803601-91-3
| CAS No. | 1803601-91-3 |
| Molecular Formula | C9H8Br2O2 |
| Molecular Weight | 307.97 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3,5-dibromo-4-ethylbenzoic acid 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.
3,5-dibromo-4-ethylbenzoic acid (CAS 1803601-91-3) is a high-purity analytical reference standard with the molecular formula C9H8Br2O2 and a molecular weight of 307.97 g/mol.
3,5-dibromo-4-ethylbenzoic acid (C9H8Br2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C9H8Br2O2 |
| Molecular Weight | 307.97 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1995 |
| Halogen Content | Br-containing |
Related dibromo Standards
- Methyl 3,5-dibromo-2-methylbenzoate (CAS 1000342-33-5)
- 2,2-Dibromo-1-(2-methoxyphenyl)ethan-1-one (CAS 1121543-12-1)
- 5,6-Dibromo-2,2-dimethylbenzo[d][1,3]dioxole (CAS 114414-23-2)
- Methyl 3,4-dibromo-5-methylbenzoate (CAS 1160574-54-8)
- 5-(3,5-Dibromo-1H-1,2,4-triazol-1-yl)pentanenitrile (CAS 1240573-98-1)
- 2,6-Dibromo-4-methylbenzoic acid methyl ester (CAS 128733-75-5)
- 3,5-Dibromo-4-methylphenyl acetate (CAS 13979-59-4)
- 1-(2,4-Dibromo-6-methoxyphenyl)ethanone (CAS 1423702-17-3)
Recommended Standards
- Methyl 2-bromo-2-(3-bromophenyl)acetate (CAS 163339-67-1)
- 2',5'-Dibromo-4'-methoxyacetophenone (CAS 1809168-60-2)
- (R)-6,8-dibromochroman-4-ol (CAS 1568213-71-7)
- 2,4-Dibromo-5-ethoxy benzaldehyde (CAS 1823404-49-4)
- 3-Amino-4-(3,5-dibromophenyl)butanoic acid (CAS 1391329-92-2)
- (4-(Acetoxymethyl)phenyl)boronic acid (CAS 326496-51-9)
- Tert-butyl 3-(4-bromophenyl)-3-((tert-butylsulfinyl)amino)azetidine-1-carboxylate (CAS 1313872-55-7)
- 5-Amino-1-ethyl-1H-indazole (CAS 511249-17-5)
- 4-Cyano-2-(difluoromethyl)-6-hydroxynicotinic acid (CAS 1806841-76-8)
- 5-Methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridine (CAS 2161304-84-1)
- Methyl 5-Bromoindole-7-carboxylate (CAS 860624-89-1)
- 4-Amino-N-(2-hydroxyethyl)-1-methyl-1H-pyrazole-5-carboxamide (CAS 1468846-49-2)
- 2-Cyanoquinolin-6-yl 2-nitrobenzenesulfonate (CAS 916661-18-2)
- FLAG Epitope Peptide (CAS 98849-88-8)
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