2-Chloro-1-(2,4-dimethoxyphenyl)ethan-1-one CAS 4783-90-8
| CAS No. | 4783-90-8 |
| Molecular Formula | C10H11ClO3 |
| Molecular Weight | 214.65 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-Chloro-1-(2,4-dimethoxyphenyl)ethan-1-one.
CATO supplies 2-Chloro-1-(2,4-dimethoxyphenyl)ethan-1-one (CAS 4783-90-8), a certified reference material (molecular formula C10H11ClO3, MW 214.65 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-Chloro-1-(2,4-dimethoxyphenyl)ethan-1-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 214.65 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C10H11ClO3 |
| Molecular Weight | 214.65 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 4-Chloro-1-cyclopentyl-1H-pyrazole-3-carboxylic acid (CAS 1006451-33-7)
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- 4-Chloro-1-cyclopentyl-1h-pyrazole-5-carboxylic acid (CAS 1006493-95-3)
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Recommended Standards
- 2-Amino-5-chloro-N-(2-hydroxyethyl)benzamide (CAS 6725-11-7)
- 2-Chloro-1-(3,4-dimethoxyphenyl)ethanone (CAS 20601-92-7)
- 2-Amino-4-chloro-N-methoxy-N-methylbenzamide (CAS 214971-18-3)
- 2-Chloro-1-(3,5-dimethoxyphenyl)ethan-1-one (CAS 72612-04-5)
- 1-Bromo-3-cyclopropylimidazo[1,5-a]pyridine (CAS 1018603-14-9)
- 2-[(3-bromo-4-methylphenyl)methyl]-3-hydroxypropanenitrile (CAS 1909316-52-4)
- 2-Bromo-6-fluoro-3-nitrobenzoic acid (CAS 1036388-81-4)
- N-(tert-butyl)-2-(6-(hydroxymethyl)-2,3-dimethylphenoxy)acetamide (CAS 1427020-60-7)
- 3-(aminomethyl)-5-bromofuran-2-carboxylic acid (CAS 2932454-11-8)
- (S)-2-(Methylamino)-2-phenylacetic acid hydrochloride (CAS 4418-82-0)
- N-benzyl-6-chloro-N-ethylpyridazin-3-amine (CAS 1094315-96-4)
- 3-(4-Bromophenyl)-2-chloro-6-(trifluoromethoxy)quinoline (CAS 1204996-85-9)
- 1-(1,2-Oxazol-5-yl)propan-2-amine (CAS 1557337-92-4)
- Peptide 432 (CAS CATO-CPTD788432)
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