2-Bromo-1-ethoxy-4-methylbenzene CAS 103260-55-5
| CAS No. | 103260-55-5 |
| Molecular Formula | C9H11BrO |
| Molecular Weight | 215.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-Bromo-1-ethoxy-4-methylbenzene.
2-Bromo-1-ethoxy-4-methylbenzene (CAS 103260-55-5), molecular formula C9H11BrO and molecular weight 215.09 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Bromo-1-ethoxy-4-methylbenzene (C9H11BrO) is characterized by a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, 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.
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 | C9H11BrO |
| Molecular Weight | 215.09 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
Related Bromo Standards
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- 4-Bromo-1-cyclopentylpyrazole (CAS 1012880-01-1)
- 3-Bromo-2-methyl-4,5,6,7-tetrahydro-2H-indazole (CAS 1043919-67-0)
- 3-Bromo-N1,N1-dimethylbenzene-1,4-diamine (CAS 107100-00-5)
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Recommended Standards
- 1-(Bromomethyl)-3-methoxy-5-methylbenzene (CAS 106116-42-1)
- 3-(2-Bromopyridin-4-yl)propan-1-amine (CAS 1000556-45-5)
- 3-(2-Bromopyridin-3-yl)propan-1-amine (CAS 1000555-64-5)
- 3-(6-Bromopyridin-3-yl)propan-1-amine (CAS 1000522-49-5)
- 2-(Prop-1-en-2-yl)oxane-3-carboxylic acid (CAS 1795189-12-6)
- 3-(4-Fluorophenyl)-7-(thiophen-2-yl)pyrazolo[1,5-a]pyrimidine (CAS 861209-72-5)
- 3-(2,4-Dichloro-5-isopropoxyphenyl)-5-(1-hydroxy-2-methylpropan-2-yl)-1,3,4-oxadiazol-2(3H)-one (CAS 54996-61-1)
- Posaconazole Impurity 166 (CAS 1631169-28-2)
- H,1H-Pentadecafluoro-n-octyl Acrylate (CAS 307-98-2)
- Ethyl Benzoate (CAS 93-89-0)
- Benzyl 2,4-Dibromobutyrate (CAS 23085-60-1)
- 1-(2-Chlorophenyl)biguanide, HCl (CAS 19579-44-3)
- 3-(4-Bromophenyl)-7-methyl-2,4a,5,6,7,8-hexahydrocinnolin-5-one (CAS 1024074-57-4)
- Semaglutide impurity 97 (CAS CATO-C4X-222697)
Why CATO?
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