4-Bromo-2-tert-Butylbenzoic acid CAS 14034-99-2
| CAS No. | 14034-99-2 |
| Molecular Formula | C11H13BrO2 |
| Molecular Weight | 257.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Bromo-2-tert-Butylbenzoic acid (C11H13BrO2) 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 257.12 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).
CATO supplies 4-Bromo-2-tert-Butylbenzoic acid (CAS 14034-99-2), a certified reference material (molecular formula C11H13BrO2, MW 257.12 g/mol) for analytical method development and quality control.
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.
As a certified reference material (CRM), 4-Bromo-2-tert-Butylbenzoic 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.
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.) | 1961 |
| 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
- Ethyl 2-(3-(bromomethyl)phenyl)acetate (CAS 140215-42-5)
- 4-Bromo-2-ethylbenzoic acid ethyl ester (CAS 1416979-60-6)
- Methyl 2-bromo-2-(p-tolyl)propanoate (CAS 1399661-55-2)
- Benzyl (S)-3-bromo-2-methylpropanoate (CAS 143645-18-5)
- [2-(3-Cyclohexenyl)ethyl]trimethoxysilane (CAS 67592-36-3)
- 1-(2-Methoxyphenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 618070-64-7)
- 4-[2-Oxo-2-(1-piperidinyl)ethoxy]benzoic acid (CAS 29936-93-4)
- Methyl 3-(benzyl((S)-2,3-dihydroxypropyl)amino)-4-methoxybutanoate (CAS 1868104-34-0)
- 4-(4-(Morpholinosulfonyl)phenoxy)-3-(trifluoromethyl)aniline (CAS 1858251-05-4)
- 3-Chloro-3-methyloctane (CAS 28320-88-9)
- n4-(Pentan-3-yl)pyridine-3,4-diamine (CAS 1039986-25-8)
- (2-Chloro-4-(trifluoromethoxy)phenyl)methanol (CAS 1261822-74-5)
- n-(2-Acetamidoethyl)-4-bromobenzamide (CAS 1090335-98-0)
- Exenatide (CAS 141758-74-9（free base）)
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