2-Bromo-1-cyclopropyl-4-methylbenzene CAS 90841-16-0
| CAS No. | 90841-16-0 |
| Molecular Formula | C10H11Br |
| Molecular Weight | 211.10 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.
2-Bromo-1-cyclopropyl-4-methylbenzene (CAS 90841-16-0), molecular formula C10H11Br and molecular weight 211.10 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H11Br, 2-Bromo-1-cyclopropyl-4-methylbenzene contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 211.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | 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.) | 1982 |
| 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
- 2-Bromo-1,2,3,4-tetrahydronaphthalene (CAS 54753-94-5)
- 2-Bromo-3-(2-methylphenyl)-1-propene (CAS 731772-14-8)
- 2,5-Dioxopyrrolidin-1-yl 2,2,2-trifluoroacetate (CAS 5672-89-9)
- 2-Bromo-3-(3-methylphenyl)-1-propene (CAS 731772-18-2)
- 4-Benzoyl-N-[3-(dimethylamino)propyl]-1H-pyrrole-2-carboxamide (CAS 477889-30-8)
- Etonogestrel USP Related Compound C (CAS 54024-10-1)
- 1-(4-Iodobenzyl)-1H-pyrazol-4-ol (CAS 1594819-28-9)
- (2-(Dimethylamino)-4-methylthiazol-5-yl)methanol (CAS 1211512-18-3)
- Diafenthiuron (CAS 80060-09-9)
- trans-Bis(tri-n-butylphosphine)nickel(II) bromide (CAS 73543-91-6)
- 3-(1H-Indol-3-yl)-2-mercaptopropanoic acid (CAS 27266-99-5)
- 2-Trifluoromethoxy-3-(trifluoromethyl)benzonitrile (CAS 1803862-25-0)
- N-Methylbut-3-en-1-amine (CAS 38369-88-9)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
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