2-Bromo-4-(2,5-dimethylphenyl)-1-butene CAS 951891-87-5
| CAS No. | 951891-87-5 |
| Molecular Formula | C12H15Br |
| Molecular Weight | 239.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Bromo-4-(2,5-dimethylphenyl)-1-butene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
2-Bromo-4-(2,5-dimethylphenyl)-1-butene (CAS 951891-87-5) is a high-purity analytical reference standard with the molecular formula C12H15Br and a molecular weight of 239.15 g/mol.
Owing to bromine substitution, an aromatic ring system, 2-Bromo-4-(2,5-dimethylphenyl)-1-butene is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 239.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H15Br |
| Molecular Weight | 239.15 g/mol |
| 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.) | 1987 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 1-Bromo-2-((2-methoxyethoxy)methyl)pentane (CAS 1493508-80-7)
- 6-Bromo-1,1-dimethyl-1,2,3,4-tetrahydronaphthalene (CAS 176088-47-4)
- 1-Bromo-4-(cyclopentylmethyl)benzene (CAS 179251-24-2)
- 1-Bromo-2-cyclohexylbenzene (CAS 59734-92-8)
- 1-Bromo-3-cyclohexylbenzene (CAS 19920-84-4)
- 1-Bromo-4-cyclohexylbenzene (CAS 25109-28-8)
- 2-Bromo-3-(2,4,5-trimethylphenyl)-1-propene (CAS 951893-23-5)
- 2-Bromo-3-(2,4,6-trimethylphenyl)-1-propene (CAS 951893-35-9)
Recommended Standards
- 2-Bromo-3-(4-Isopropylphenyl)-1-propene (CAS 951890-61-2)
- 2-Bromo-4-(3,4-dimethylphenyl)-1-butene (CAS 951892-11-8)
- 2-Bromo-3-(2-isopropylphenyl)-1-propene (CAS 951890-55-4)
- 2-Bromo-4-(3,5-dimethylphenyl)-1-butene (CAS 951892-29-8)
- tert-Butyl 4-amino-4-[4-(trifluoromethyl)benzyl]piperidine-1-carboxylate (CAS 1779125-27-7)
- 3-Chloro-4-[(4-methyl-1,3-thiazol-2-yl)oxy]aniline (CAS 1094461-21-8)
- 2-(3-Fluoropyridin-4-yl)propan-2-amine hydrochloride (CAS 2442597-47-7)
- 1-({Imidazo[1,2-a]pyridin-3-yl}methyl)piperidine-4-carboxylic acid (CAS 904814-21-7)
- cis-Methyl-3-(bromomethyl)-3-fluorocyclobutane-1-carboxylate (CAS 1932359-29-9)
- 2,4-Dimethylquinazoline (CAS 703-63-9)
- 1-(2-Chloro-5-nitrophenyl)-3-(ethoxycarbonyl)-5-methyl-4,5-dihydro-1h-pyrazole-5-carboxylic acid (CAS 1264046-78-7)
- (6S,8AR)-6-amino-5-oxooctahydroindolizine-8a-carboxylic acid (CAS 172140-60-2)
- 3-(4-Bromophenyl)-1-methyl-1H-1,2,4-triazole (CAS 1184174-04-6)
- Peptide 436 (CAS CATO-CPTD788436)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com