4-(1-Bromoethyl)-1,2-difluorobenzene CAS 150881-71-3
| CAS No. | 150881-71-3 |
| Molecular Formula | C8H7BrF2 |
| Molecular Weight | 221.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4-(1-Bromoethyl)-1,2-difluorobenzene (CAS 150881-71-3), molecular formula C8H7BrF2 and molecular weight 221.04 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(1-Bromoethyl)-1,2-difluorobenzene (C8H7BrF2) contains 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 221.04 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).
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.
Physical & Chemical Properties
| Molecular Formula | C8H7BrF2 |
| Molecular Weight | 221.04 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 |
| 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.) | 2000 |
| Halogen Content | F/Br-containing |
Related Bromoethyl Standards
- 1-(1-Bromoethyl)-2,4-difluorobenzene (CAS 1094272-78-2)
- 2-(1-Bromoethyl)-1,3-difluorobenzene (CAS 113212-10-5)
- 2-(2-Bromoethyl)-1,3-difluorobenzene (CAS 1260790-92-8)
- 1-(2-Bromoethyl)-2,3-difluorobenzene (CAS 126163-29-9)
- 2-(2-Bromoethyl)-1,4-difluorobenzene (CAS 1340124-22-2)
- 4-(2-Bromoethyl)-1,2-difluorobenzene (CAS 175018-77-6)
- 1-(2-Bromoethyl)-2,4-difluorobenzene (CAS 214618-54-9)
- 1-(2-Bromoethyl)-3,5-difluorobenzene (CAS 958027-90-2)
Recommended Standards
- Methyl 2,6-dichloro-3-hydroxybenzoate (CAS 142601-42-1)
- 2,5-Difluoro-4-methylbenzylbromide (CAS 1515657-97-2)
- Methyl 6-amino-3,5-dichloropicolinate (CAS 1416374-91-8)
- 3,4-Dichloro-2-methoxybenzoic acid (CAS 155382-86-8)
- 5-Methyl-N-(2-(thiophene-2-carbonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)isoxazole-3-carboxamide (CAS 1207006-34-5)
- 7-Methylpyrrolo[1,2-a]quinoxalin-4(5H)-one (CAS 159548-95-5)
- (R)-4-chloro-6,7-dihydro-5H-cyclopenta[b]pyridin-7-ol (CAS 1239661-73-4)
- 4,6-Dichloro-1-nitroanthracene-9,10-dione (CAS 60506-83-4)
- 2-(5-Propoxy-1H-indol-3-yl)ethan-1-amine (CAS 3610-40-0)
- N-benzyl-2H-indazol-7-amine (CAS 1042987-79-0)
- 3,5-Dichloro-2-(difluoromethoxy)benzotrifluoride (CAS 1807184-46-8)
- 5-Methylpyridazine-3-carboxylic acid (CAS 1211578-14-1)
- 1-Bromo-4-isocyanato-2-(trifluoromethyl)benzene (CAS 41513-02-4)
- Neuropeptide FF (CAS 99566-27-5)
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