2,5-Dibromo-3-ethyltoluene CAS 1208075-68-6
| CAS No. | 1208075-68-6 |
| Molecular Formula | C9H10Br2 |
| Molecular Weight | 277.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2,5-Dibromo-3-ethyltoluene 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.
2,5-Dibromo-3-ethyltoluene (CAS 1208075-68-6), molecular formula C9H10Br2 and molecular weight 277.98 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to bromine substitution, an aromatic ring system, 2,5-Dibromo-3-ethyltoluene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 277.98 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H10Br2 |
| Molecular Weight | 277.98 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Br-containing |
Related Dibromo Standards
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Recommended Standards
- 1-Bromo-3-(3-bromopropyl)benzene (CAS 109757-61-1)
- 1-Bromo-4-(2-bromopropyl)benzene (CAS 1310280-63-7)
- 1-bromo-4-(1-bromopropyl)benzene (CAS 1094335-60-0)
- (3,3-Dibromopropyl)benzene (CAS 134414-86-1)
- 1-(2,6-Dihydroxy-4-methoxyphenyl)-3-phenylprop-2-en-1-one (CAS 77129-49-8)
- 5,6-Diamino-1-(2-methylpropyl)-2,4(1H,3H)-pyrimidinedione (CAS 54052-62-9)
- 3-(Chloromethyl)-5-fluoropyridine (CAS 39891-37-7)
- Ethyl 2-amino-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine-3-carboxylate (CAS 150012-89-8)
- Apomorphine Impurity 2 (CAS CATO-C4X-21172)
- 5-(sec-Butyl)-3-methyl-2-thioxoimidazolidin-4-one (CAS 704-06-3)
- 1-Propionylpyrrolidine-2-carboxamide (CAS 122000-62-8)
- 6-Amino-1H-indazole-3-carboxylic acid (CAS 885519-22-2)
- Malic Acid Impurity 12 (CAS CATO-C4X-250912)
- Des-Phe22-Tirzepatide (CAS CATO-CPTD788951)
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