2-Methyl-5-bromobiphenyl CAS 571903-41-8
| CAS No. | 571903-41-8 |
| Molecular Formula | C13H11Br |
| Molecular Weight | 247.13 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 2-Methyl-5-bromobiphenyl.
2-Methyl-5-bromobiphenyl (CAS 571903-41-8), molecular formula C13H11Br and molecular weight 247.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H11Br, 2-Methyl-5-bromobiphenyl contains bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 247.13 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.
CATO manufactures 2-Methyl-5-bromobiphenyl under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H11Br |
| Molecular Weight | 247.13 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
Related Methyl Standards
- 4-Bromobiphenyl-2-ylamine (CAS 62532-98-3)
- 3′-Bromobiphenyl-4-carbonitrile (CAS 160521-46-0)
- 4-Bromobiphenyl-3-carbaldehyde (CAS 1237107-66-2)
- 4’-Bromobiphenyl-4-carbaldehyde (CAS 50670-58-1)
- 4’-Bromobiphenyl-2,4-diol (CAS 1418117-89-1)
- 3-Bromobiphenyl-2-carboxylic acid (CAS 94654-52-1)
- 3'-Bromobiphenyl-3-carboxylic acid (CAS 854237-06-2)
- 1-(4'-Bromobiphenyl-4-yl)ethan-1-one 1-[4-(4-bromophenyl)phenyl]ethanone 4'-(4-Bromophenyl)acetophenone 5731-01-1 (CAS 5731-01-1)
Recommended Standards
- 2-Bromodiphenylmethane (CAS 23450-18-2)
- 3-(4-Bromo-3-methyl-1H-pyrazol-1-yl)-2-methylbutan-2-ol (CAS 2432829-27-9)
- 2-Bromo-4-methylbiphenyl (CAS 29180-98-1)
- 3-(4-Bromo-5-methyl-1H-pyrazol-1-yl)-2-methylbutan-2-ol (CAS 2432829-26-8)
- 2-Amino-5-[(4-methylphenyl)methyl]-5-phenyl-4,5-dihydro-1H-imidazol-4-one (CAS 1354923-36-6)
- Ethyl 2-(2-methylpiperidin-4-yl)acetate oxalate(2:1) (CAS 1810070-27-9)
- Benzo[d]isothiazole-7-carboxylic acid (CAS 1260382-80-6)
- 6-Methyl-2,3-dihydropyrazolo[5,1-b]oxazole (CAS 67000-44-6)
- 2,5-Diamino-4-fluorobenzamide (CAS 1250308-04-3)
- 7-Methoxy-2,3-dihydrobenzo[b][1,4]dioxin-6-amine (CAS 76958-06-0)
- (R)-2-Amino-3,3,3-trifluoro-2-methylpropan-1-ol (CAS 1352874-89-5)
- Benzyl (2-hydroxyethyl)(pentan-3-yl)carbamate (CAS 1303873-21-3)
- 1-amino-3-isobutoxypropan-2-ol (CAS 60755-67-1)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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