5-Bromo-3-(tert-butyl)-2-hydroxybenzaldehyde CAS 153759-58-1
| CAS No. | 153759-58-1 |
| Molecular Formula | C11H13BrO2 |
| Molecular Weight | 257.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Bromo-3-(tert-butyl)-2-hydroxybenzaldehyde 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.
5-Bromo-3-(tert-butyl)-2-hydroxybenzaldehyde (CAS 153759-58-1), molecular formula C11H13BrO2 and molecular weight 257.12 g/mol, is a CATO reference standard with documented purity and traceability.
5-Bromo-3-(tert-butyl)-2-hydroxybenzaldehyde (C11H13BrO2) 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, its high carbon-to-hydrogen ratio confers good lipid solubility, 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 | C11H13BrO2 |
| Molecular Weight | 257.12 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 2000 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 4-Bromo-2-isobutylbenzoic acid (CAS 1016313-25-9)
- 2-Bromo-5-(4-fluorophenyl)thiophene (CAS 1073313-97-9)
- Ethyl 5-bromo-2-ethylbenzoate (CAS 1131587-83-1)
- Ethyl 5-bromo-2,4-dimethylbenzoate (CAS 1131587-91-1)
- 3-Bromo-4-butylbenzoic acid (CAS 1131615-06-9)
- 3-Bromo-4-isobutylbenzoic acid (CAS 1131615-07-0)
- Ethyl 3-bromo-4-ethylbenzoate (CAS 1131615-08-1)
- 2-Bromo-4-(3-fluorophenyl)thiophene (CAS 1159819-93-8)
Recommended Standards
- Cumyl Bromoacetate (CAS 153698-47-6)
- Methyl 2-(4-Bromophenyl)-2,2-dimethylacetate (CAS 154825-97-5)
- 6-Chloroimidazo[2,1-b][1,3]thiazole-5-sulfonyl chloride (CAS 150020-64-7)
- 5-Bromo-3-methyl-2-(propan-2-yloxy)benzaldehyde (CAS 1564722-77-5)
- Tert-butyl 4-(aminomethyl)-1-thia-8-azaspiro[4.5]Decane-8-carboxylate 1,1-dioxide (CAS 1373028-03-5)
- 1-(2-Bromo-5-chlorophenyl)ethan-1-amine (CAS 1270382-65-4)
- 1-[(2,4-dichlorophenoxy)methyl]-3,5-dimethyl-1h-pyrazol-4-amine (CAS 1004192-78-2)
- Linezolid Impurity 15 (CAS 93246-53-8)
- 5-(3-Methoxyphenyl)-4-methyl-1,2-dihydro-3h-pyrazol-3-imine (CAS 1033430-89-5)
- (2S)-2-amino-5-((5-methyl-4-oxo-4,5-dihydro-1H-imidazol-2-yl)amino)pentanoic acid-d3 (CAS 149204-50-2(unlabelled))
- Tert-butyl 4-(3-hydroxyazetidin-1-yl)piperidine-1-carboxylate (CAS 1258640-55-9)
- (S)-3-Cyclohexylpropyl 1-(3,3-dimethyl-2-oxopentanoyl)piperidine-2-carboxylate (CAS 152754-34-2)
- tert-Butyl 3-(((S)-2-amino-3-methylbutanamido)methyl)piperidine-1-carboxylate (CAS 1354028-77-5)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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