Ethyl 5-chloro-2,4-dimethoxybenzoate CAS 1022091-79-7
| CAS No. | 1022091-79-7 |
| Molecular Formula | C11H13ClO4 |
| Molecular Weight | 244.67 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 Ethyl 5-chloro-2,4-dimethoxybenzoate.
Ethyl 5-chloro-2,4-dimethoxybenzoate (CAS 1022091-79-7) is a high-purity analytical reference standard with the molecular formula C11H13ClO4 and a molecular weight of 244.67 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Ethyl 5-chloro-2,4-dimethoxybenzoate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 244.67 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.
As a certified reference material (CRM), Ethyl 5-chloro-2,4-dimethoxybenzoate 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 | C11H13ClO4 |
| Molecular Weight | 244.67 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.) | 1988 |
| Halogen Content | Cl-containing |
Related Ethyl Standards
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- Methyl 5-(4-chloro-1H-pyrazol-1-yl)-4-methyl-3-oxopentanoate (CAS 1229623-93-1)
- 4-Chloro-5-methoxy-2-(tetrahydro-2H-pyran-3-yl)pyridazin-3(2H)-one (CAS 1245646-05-2)
- methyl 2-chloro-2-(3,5-dimethoxyphenyl)acetate (CAS 1247455-96-4)
- 2-Chloro-1-(dibenzo[b,d]furan-2-yl)ethanone (CAS 13067-90-8)
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Recommended Standards
- 4-(2H-Tetrazol-5-yl)benzene-1-sulfonyl chloride (CAS 924964-20-5)
- 8-Chloro-2-(methylsulfonyl)pyrimido[5,4-d]pyrimidine (CAS 1824276-64-3)
- (4-Chloro-2,5-difluorophenyl)(cyclopentyl)methanone (CAS 1443354-45-7)
- 4-(1h-1,2,3,4-Tetrazol-1-yl)benzene-1-sulfonyl chloride (CAS 1099660-63-5)
- 4-Fluoro-2-isopropyl-1H-benzo[d]imidazole (CAS 953071-94-8)
- Methyl 6-(Benzyloxy)-5-bromopyridine-2-carboxylate (CAS 1493800-02-4)
- 5,7-Difluoroindoline-2,3-dione (CAS 116570-41-3)
- Ethyl (2E)-3-oxo-3-phenyl-2-(2-phenylhydrazin-1-ylidene)propanoate (CAS 73981-91-6)
- 3-Fluoro-4-(3-trifluoromethylphenyl)benzoic acid (CAS 1261750-12-2)
- 7-Phenyl-2-(piperidin-1-yl)-3-propyl-3H,4H-thieno[3,2-d]pyrimidin-4-one (CAS 1707586-30-8)
- 5-Chloro-2-hydroxy-3-nitrobenzoic acid (CAS 7195-78-0)
- 1-(4-Methylpyrimidin-2-yl)propan-2-amine (CAS 1511367-06-8)
- Ethyl 4-aminothiazole-2-carboxylate (CAS 1289163-31-0)
- Neuropeptide K, porcine (CAS 106441-70-7)
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