2-(4-Chloro-2-methoxyphenoxy)acetic acid CAS 56913-08-7
| CAS No. | 56913-08-7 |
| Molecular Formula | C9H9ClO4 |
| Molecular Weight | 216.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(4-Chloro-2-methoxyphenoxy)acetic acid (C9H9ClO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.
CATO supplies 2-(4-Chloro-2-methoxyphenoxy)acetic acid (CAS 56913-08-7), a certified reference material (molecular formula C9H9ClO4, MW 216.62 g/mol) for analytical method development and quality control.
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), 2-(4-Chloro-2-methoxyphenoxy)acetic acid 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 | C9H9ClO4 |
| Molecular Weight | 216.62 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.) | 1973 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- Ethyl 6-chloro-3-hydrazinylpyridazine-4-carboxylate (CAS 1073488-86-4)
- 2-(4-Chloro-2-nitrophenoxy)ethan-1-amine (CAS 1183594-44-6)
- Ethyl 3-chloro-2-oxopyrazine-1(2H)-carboxylate (CAS 1194374-11-2)
- Ethyl 2-(5-chloro-1-methyl-1h-imidazol-2-yl)-2-oxoacetate (CAS 1210133-00-8)
- 3-(3-Chloro-4-hydroxyphenyl)-3-hydroxypropanoic acid (CAS 1248246-33-4)
- 2-(5-Chloro-2-nitrophenoxy)ethan-1-amine (CAS 1248814-38-1)
- 2-(3-Chloro-4-nitrophenoxy)ethan-1-amine (CAS 1249187-43-6)
- 2-Chloro-6-(methoxymethoxy)benzoic acid (CAS 1253188-17-8)
Recommended Standards
- 2-(3-Chloro-4-methoxyphenyl)-2-hydroxyacetic acid (CAS 23982-26-5)
- 2-(4-Chloro-5-hydroxy-2-methylphenoxy)acetic acid (CAS 2315-24-4)
- 2-(2-Chloro-4-methoxyphenoxy)acetic acid (CAS 714250-83-6)
- 2-Chloro-1-(1-ethyl-4-nitro-1H-pyrrol-2-yl)ethanone (CAS 53391-47-2)
- 2-Methyl-1,4-diazepane (CAS 65974-17-6)
- (4-Morpholinoquinolin-2-yl)boronic acid (CAS 1201845-56-8)
- Methyl 1-(Hydroxymethyl)cyclohexanecarboxylate (CAS 104654-66-2)
- (4-(4-Chlorophenoxy)phenyl)hydrazine hydrochloride (CAS 849021-09-6)
- 2-Phenoxynaphthalene-1,4-dione (CAS 220459-72-3)
- 2-Chloro-6-cyclopropyl-3-fluorobenzaldehyde (CAS 1980783-94-5)
- N-(3-Fluorobenzyl)-4-methylaniline (CAS 127598-65-6)
- Nicorandil EP Impurity D (CAS 40055-37-6)
- 3-Chloro-N-(2,5-dimethoxyphenyl)propanamide (CAS 154343-50-7)
- Semaglutide Impurity 149 (CAS CATO-C4X-2226149)
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