39156-98-4 (2E)-3-(3,4-Dichlorophenyl)prop-2-enoyl chloride DTXSID70452658 CAS 39156-98-4
| CAS No. | 39156-98-4 |
| Molecular Formula | C9H5Cl3O |
| Molecular Weight | 235.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
39156-98-4 (2E)-3-(3,4-Dichlorophenyl)prop-2-enoyl chloride DTXSID70452658 (CAS 39156-98-4) is a high-purity analytical reference standard with the molecular formula C9H5Cl3O and a molecular weight of 235.49 g/mol.
39156-98-4 (2E)-3-(3,4-Dichlorophenyl)prop-2-enoyl chloride DTXSID70452658 (C9H5Cl3O) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C9H5Cl3O |
| Molecular Weight | 235.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
Related E Standards
- (E)-3-(2,4-dichlorophenyl)acryloyl chloride (CAS 82476-04-8)
- (2E)-3-(2,6-Dichlorophenyl)acryloyl chloride 230305-41-6 7841AD C9H5Cl3O (CAS 230305-41-6)
- 39175-64-9 (2E)-3-(2,4-Dichlorophenyl)prop-2-enoyl chloride DTXSID50514703 (CAS 39175-64-9)
- 2-[[(2,4-dichlorophenyl)thio]methyl]-oxirane (CAS 122451-09-6)
- 3-((3,4-Dichlorophenyl)thio)propanal (CAS 140360-38-9)
- 1-((2,5-Dichlorophenyl)thio)propan-2-one (CAS 40806-14-2)
- 1-(2,5-Dichlorophenyl)-2-(methylthio)ethan-1-one (CAS 937034-28-1)
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Recommended Standards
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- 5-Amino-1-(o-tolyl)-1H-pyrazole-4-carboxamide (CAS 792953-11-8)
- 3-((2,4-Dichlorobenzyl)thio)-4-phenyl-5-((3-(trifluoromethyl)phenoxy)methyl)-4H-1,2,4-triazole (CAS 383145-96-8)
- (3-Chlorophenyl)(3-fluoro-5-methylphenyl)methanone (CAS 951886-55-8)
- Methyl 2-(3-chloro-2-nitrophenyl)-2-cyanoacetate (CAS 127500-23-6)
- N'-[(1Z)-(Furan-2-yl)methylidene]-3-(1H-pyrrol-1-yl)thiophene-2-carbohydrazide (CAS 478063-21-7)
- 3-(3,4-Dichlorophenyl)benzonitrile (CAS 1365272-36-1)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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