2-(3-Chlorobut-3-en-1-yl)-1,3-difluorobenzene CAS 951892-43-6
| CAS No. | 951892-43-6 |
| Molecular Formula | C10H9ClF2 |
| Molecular Weight | 202.63 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.
2-(3-Chlorobut-3-en-1-yl)-1,3-difluorobenzene (CAS 951892-43-6) is a high-purity analytical reference standard with the molecular formula C10H9ClF2 and a molecular weight of 202.63 g/mol.
Structurally, 2-(3-Chlorobut-3-en-1-yl)-1,3-difluorobenzene (C10H9ClF2) contains fluorine/chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 202.63 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 2-(3-Chlorobut-3-en-1-yl)-1,3-difluorobenzene 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.
Physical & Chemical Properties
| Molecular Formula | C10H9ClF2 |
| Molecular Weight | 202.63 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 | F/Cl-containing |
Related Chlorobut Standards
- 1-(3-Chlorobut-3-en-1-yl)-2,4-difluorobenzene (CAS 951893-40-6)
- 2-(3-Chlorobut-3-en-1-yl)-1,4-difluorobenzene (CAS 951892-27-6)
- 731773-13-0 1-(3-Chlorobut-3-en-1-yl)-2-methoxybenzene DTXSID00641179 (CAS 731773-13-0)
- 732248-87-2 2-(3-Chlorobut-3-en-1-yl)benzoic acid DTXSID60641256 (CAS 732248-87-2)
- 3-(3-Chlorobut-3-en-1-yl)benzonitrile (CAS 731772-70-6)
- 2-((4-Chlorobut-2-yn-1-yl)oxy)tetrahydro-2H-pyran (CAS 67727-01-9)
- 1-(3-Chlorobut-3-en-1-yl)-4-fluorobenzene (CAS 731773-09-4)
- 1-(4-Chlorobut-1-yn-1-yl)-4-fluorobenzene (CAS 1183278-95-6)
Recommended Standards
- 1-Chloro-2-methoxy-4-(methoxymethoxy)benzene (CAS 84290-28-8)
- 1-CHloro-2,3,4-trimethoxybenzene (CAS 54625-53-5)
- 2-Chloro-1,3,5-trimethoxybenzene (CAS 67827-56-9)
- 2-Chloro-4-(3,4-difluorophenyl)-1-butene (CAS 951892-60-7)
- 5-(tert-Butyl)-3-cyclopropoxy-2-fluoropyridine (CAS 1243448-30-7)
- Posaconazole-d5 (CAS 171228-49-2 (unlabelled))
- 7-(4-(9-Phenyl-9H-carbazol-2-yl)quinazolin-2-yl)-7H-dibenzo[c,g]carbazole (CAS 1831056-76-8)
- 1-(3,4-Difluorobenzyl)pyrrolidine-3-carboxylic acid (CAS 1828197-59-6)
- Boc-asp(ochex)-osu (CAS 118534-86-4)
- Methyl 2-(4-(chloromethyl)phenyl)acetate (CAS 72770-09-3)
- 2,4-Dichloro-5-isopropoxyaniline (CAS 41200-96-8)
- 2-Chloro-4-phenyloxazole (CAS 445470-08-6)
- 2-(1H-Imidazole-2-carbonyl)-N-octadecylbenzamide (CAS 62366-87-4)
- D-[His]1-Semaglutide (CAS CATO-C4X-222652)
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