4-Bromo-3,5-difluorophenoxy(tert-butyl)dimethylsilane CAS 1881291-46-8
| CAS No. | 1881291-46-8 |
| Molecular Formula | C12H17BrF2OSi |
| Molecular Weight | 323.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Bromo-3,5-difluorophenoxy(tert-butyl)dimethylsilane (C12H17BrF2OSi) contains a hydroxyl group, an ether linkage, fluorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 323.25 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 4-Bromo-3,5-difluorophenoxy(tert-butyl)dimethylsilane (CAS 1881291-46-8), a certified reference material (molecular formula C12H17BrF2OSi, MW 323.25 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.
CATO manufactures 4-Bromo-3,5-difluorophenoxy(tert-butyl)dimethylsilane 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 | C12H17BrF2OSi |
| Molecular Weight | 323.25 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Br-containing |
Related Bromo Standards
- 4-Bromo-2,3-difluorophenoxy(tert-butyl)dimethylsilane (CAS 1881320-68-8)
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Recommended Standards
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- 1-(3,5-Dichlorophenyl)-N-methylmethanamine (CAS 90390-21-9)
- Hexyl 6-aminohexanoate 4-methylbenzenesulfonate (CAS 1926-86-9)
- 2-Amino-N-cyclohexyl-N,3-dimethylbutanamide hydrochloride (CAS 1236258-13-1)
- 2-Bromo-4,6-dimethyl-nicotinonitrile (CAS 610279-99-7)
- 2,3-Dibromo-4,6-difluorophenylacetic acid (CAS 1806350-14-0)
- 2-(Difluoromethyl)-6-iodo-5-methoxypyridine-3-carboxylic acid (CAS 1807135-94-9)
- 2-(3-Bromo-4-fluorophenyl)ethanethioamide (CAS 1016751-69-1)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
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