4-(4-Bromo-phenoxy)-benzoic acid methyl ester CAS 21120-75-2
| CAS No. | 21120-75-2 |
| Molecular Formula | C14H11BrO3 |
| Molecular Weight | 307.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4-(4-Bromo-phenoxy)-benzoic acid methyl ester (C14H11BrO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-(4-Bromo-phenoxy)-benzoic acid methyl ester (CAS 21120-75-2), molecular formula C14H11BrO3 and molecular weight 307.14 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(4-Bromo-phenoxy)-benzoic acid methyl ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H11BrO3 |
| Molecular Weight | 307.14 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
Related Bromo Standards
- Methyl 5-bromo-4-hydroxy-[1,1'-biphenyl]-3-carboxylate (CAS 1155261-80-5)
- 3'-Bromo-5'-methoxy-[1,1'-biphenyl]-3-carboxylic acid (CAS 1215205-39-2)
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- 2-Bromo-4-methoxy-[1,1'-biphenyl]-3-carboxylic acid (CAS 1215206-38-4)
- 4-Bromo-2-hydroxy-N-(pyridin-2-ylmethyl)benzamide (CAS 1241101-26-7)
Recommended Standards
- 4-(2-Bromophenoxymethyl)benzoic acid (CAS 364610-26-4)
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- 4-(Benzyloxy)-3-bromobenzoic acid (CAS 501657-77-8)
- 2-Methyl-4-(3-methylbenzoyl)pyridine (CAS 1187168-74-6)
- (2R,5S)-5-((S)-1-aminoethyl)-N-isopropyltetrahydrofuran-2-carboxamide (CAS 1332725-33-3)
- 51460-82-3 Naphtho(2,3-b)furan, 9-methoxy-3,4,5-trimethyl- O-Methylcacalodienol (CAS 51460-82-3)
- 2H-Cyclohepta[d]pyrimidine (CAS 30735-87-6)
- N-(2,6-Dimethylphenyl)-N-{2-[(4-methyl-1,2,3-thiadiazol-5-yl)sulfanyl]ethyl}urea (CAS 478077-56-4)
- 2,2-Dimethyl-3-p-tolylpropan-1-amine hydrochloride (CAS 1439899-24-7)
- 3-Amino-N-methyl-1H-pyrazole-4-carboxamide (CAS 77937-05-4)
- 3,6-Dimethylheptan-2-ol (CAS 1247790-47-1)
- tert-Butyl (1-(3-methoxybenzyl)piperidin-4-yl)carbamate (CAS 1286274-23-4)
- Neuropeptide Y (13-36) (human, rat) (CAS 122341-40-6)
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