2-(But-3-en-1-yl)-1,4-dichlorobenzene CAS 951892-70-9
| CAS No. | 951892-70-9 |
| Molecular Formula | C10H10Cl2 |
| Molecular Weight | 201.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(But-3-en-1-yl)-1,4-dichlorobenzene is closely related to chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(But-3-en-1-yl)-1,4-dichlorobenzene (CAS 951892-70-9), molecular formula C10H10Cl2 and molecular weight 201.09 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(But-3-en-1-yl)-1,4-dichlorobenzene (C10H10Cl2) is characterized by chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H10Cl2 |
| Molecular Weight | 201.09 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 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 | Cl-containing |
Recommended Standards
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- 1-Chloro-4-(2-chloroallyl)-2-methylbenzene (CAS 951888-23-6)
- 2-Chloro-3-(4-chloro-2-methylphenyl)-1-propene (CAS 951894-00-1)
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