1-(1-Bromovinyl)-2-methylbenzene CAS 74346-22-8
| CAS No. | 74346-22-8 |
| Molecular Formula | C9H9Br |
| Molecular Weight | 197.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(1-Bromovinyl)-2-methylbenzene (CAS 74346-22-8) is a high-purity analytical reference standard with the molecular formula C9H9Br and a molecular weight of 197.07 g/mol.
The molecular framework of 1-(1-Bromovinyl)-2-methylbenzene (C9H9Br) is characterized by bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H9Br |
| Molecular Weight | 197.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
| Halogen Content | Br-containing |
Related Bromovinyl Standards
- 1-(2-Bromovinyl)-3-methylbenzene (CAS 115665-69-5)
- 1-(1-Bromovinyl)-4-methylbenzene (CAS 51270-89-4)
- 5-(1-Bromovinyl)-2-methylpyridine (CAS 98545-62-1)
- 3-(2-Bromovinyl)phenol (CAS 725273-88-1)
- 4-(2-bromovinyl)phenol (CAS 99094-10-7)
- (E)-1-(2-Bromovinyl)-4-fluorobenzene (CAS 115665-76-4)
- 1-[2-Bromovinyl]-4-fluorobenzene (CAS 870122-74-0)
- 2-[2-bromovinyl]-5-nitrofuran (CAS 67363-72-8)
Recommended Standards
- (E)-(3-Bromo-1-propenyl)benzene (CAS 26146-77-0)
- (3-Bromoprop-1-en-2-yl)benzene (CAS 3360-54-1)
- 1-(2-Bromoethenyl)-2-methylbenzene (CAS 889869-30-1)
- (2-Bromocyclopropyl)benzene (CAS 36617-02-4)
- (1-Amino-4-methylpentan-2-yl)(1-phenylethyl)amine (CAS 1311314-37-0)
- 4-[(Benzenesulfonyl)methyl]-6-[(4-methoxyphenyl)sulfanyl]-2-methylpyrimidine (CAS 338960-52-4)
- 6-Chloro-3-iodopyrazine-2-carboxylic acid (CAS 2241239-41-6)
- (1R,2S)-2-Amino-1-phenyl-1,3-propanediol (CAS 105452-39-9)
- 3-Bromo-1h-pyrazolo[4,3-b]pyridine-6-carbonitrile (CAS 1352397-49-9)
- (2-Methyl-3-nitrophenyl)methanol (CAS 23876-13-3)
- 1-(3-ethyl-5-methyl-1-benzofuran-2-yl)ethanone (CAS 790263-82-0)
- Calcitonin Impurity 4 (CAS CATO-C4X-22184)
- 2-((1-Oxidotetrahydro-2H-thiopyran-4-yl)amino)acetonitrile (CAS 1597628-56-2)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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