1-Bromo-3-(2-methylallyl)benzene CAS 371754-81-3
| CAS No. | 371754-81-3 |
| Molecular Formula | C10H11Br |
| Molecular Weight | 211.10 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 1-Bromo-3-(2-methylallyl)benzene.
1-Bromo-3-(2-methylallyl)benzene (CAS 371754-81-3), molecular formula C10H11Br and molecular weight 211.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-Bromo-3-(2-methylallyl)benzene (C10H11Br) contains bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 211.10 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C10H11Br |
| Molecular Weight | 211.10 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 chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 1-Bromo-3-(1-methylcyclopropyl)benzene (CAS 1211592-89-0)
- 1-Bromo-2-(1-methylcyclopropyl)benzene (CAS 1211594-34-1)
- (3-Bromo-2-methylprop-1-en-1-yl)benzene (CAS 1282061-69-1)
- 1-Bromo-4-cyclopropyl-2-methylbenzene (CAS 1353854-72-4)
- 1-Bromo-2-cyclobutylbenzene (CAS 1353854-80-4)
- 4-Bromo-1-(3-butenyl)benzene (CAS 15451-32-8)
- 1-Bromo-3-(but-3-en-1-yl)benzene (CAS 161173-98-4)
- 1-Bromo-3-cyclobutylbenzene (CAS 17789-13-8)
Recommended Standards
- 1-Bromo-3-(2-ethoxyethoxy)propane (CAS 50989-89-4)
- 1-Bromo-3-(cyclopropylmethyl)benzene (CAS 931430-39-6)
- 1-Bromo-2-(but-3-en-1-yl)benzene (CAS 71813-50-8)
- 1-Bromo-4-(1-methylcyclopropyl)benzene (CAS 40780-08-3)
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- 5-(2-Aminoethyl)-1H-pyrazol-3(2H)-one (CAS 66643-76-3)
- 2-([2-(Methylamino)-2-oxoethyl]thio)benzoic acid (CAS 949752-09-4)
- 6-Bromo-4-(trifluoromethyl)pyridin-2-amine (CAS 1256825-17-8)
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