1-Bromo-2,4-difluoro-5-(propan-2-yloxy)benzene CAS 1881291-35-5
| CAS No. | 1881291-35-5 |
| Molecular Formula | C9H9BrF2O |
| Molecular Weight | 251.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-Bromo-2,4-difluoro-5-(propan-2-yloxy)benzene (C9H9BrF2O) contains a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 251.07 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1-Bromo-2,4-difluoro-5-(propan-2-yloxy)benzene (CAS 1881291-35-5), molecular formula C9H9BrF2O and molecular weight 251.07 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures 1-Bromo-2,4-difluoro-5-(propan-2-yloxy)benzene 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 | C9H9BrF2O |
| Molecular Weight | 251.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1995 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 1-(2-Bromo-1,1-difluoroethyl)-2-methoxybenzene (CAS 1186194-40-0)
- 5-Bromo-2-(difluoromethoxy)-1,3-dimethylbenzene (CAS 1192539-88-0)
- 1-Bromo-3,4-difluoro-2-isopropoxybenzene (CAS 1242070-97-8)
- 2-(2-Bromo-4,5-difluorophenoxy)propane (CAS 1266253-67-1)
- 5-Bromo-1,2-difluoro-3-propoxybenzene (CAS 1309932-77-1)
- 1-Bromo-3,5-difluoro-2-propoxybenzene (CAS 1309932-96-4)
- 5-Bromo-1,3-difluoro-2-propoxybenzene (CAS 1309933-01-4)
- 5-Bromo-1,3-difluoro-2-(propan-2-yloxy)benzene (CAS 1309933-98-9)
Recommended Standards
- 1-Bromo-2,4-difluoro-5-propoxybenzene (CAS 1881290-38-5)
- 1-Bromo-2,5-difluoro-4-propoxybenzene (CAS 1881292-82-5)
- 2-Bromo-4-(2,2-difluoroethoxy)-1-methylbenzene (CAS 1861177-37-8)
- 1-Bromo-2,4-difluoro-3-(propan-2-yloxy)benzene (CAS 1881329-68-5)
- (Z)-1-Ethoxy-4,4,4-trifluoro-3-(4-methoxypyridin-1-ium-1-yl)-1-oxobut-2-ene-2-thiolate (CAS 2408826-38-8)
- 4-Bromo-6-(difluoromethyl)picolinaldehyde (CAS 1805296-82-5)
- 1-(2,2-Difluoro-1-methylcyclopropyl)ethan-1-one (CAS 128073-32-5)
- 5-Butyl-2-(4-(trans-4-propylcyclohexyl)phenyl)pyrimidine (CAS 98495-18-2)
- 3-Bromo-2,2-difluoro-1-(1,4-dioxaspiro[4.5]decan-8-yl)propan-1-one (CAS 2766367-09-1)
- 1-(2-Fluoroethyl)cyclobutane-1-carboxylic acid (CAS 1506466-22-3)
- 1-(5-Bromo-2-fluorophenyl)-2-methylpropan-2-amine (CAS 1250889-36-1)
- 3,5-Dicyanobenzoic acid (CAS 58123-68-5)
- 2-Chloro-1-(7-nitro-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)ethan-1-one (CAS 128627-29-2)
- Semaglutide impurity 271 (CAS CATO-C4X-2226271)
Why CATO?
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