2-(5-Chloro-2-methylphenoxy)acetic acid CAS 25141-38-2
| CAS No. | 25141-38-2 |
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.62 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-(5-Chloro-2-methylphenoxy)acetic acid (CAS 25141-38-2) is a high-purity analytical reference standard with the molecular formula C9H9ClO3 and a molecular weight of 200.62 g/mol.
Based on its molecular formula C9H9ClO3, 2-(5-Chloro-2-methylphenoxy)acetic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 200.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), 2-(5-Chloro-2-methylphenoxy)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 | C9H9ClO3 |
| Molecular Weight | 200.62 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.) | 1964 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-(4-Chloro-3-cyclopropyl-1H-pyrazol-1-yl)acetic acid (CAS 1006319-36-3)
- 5-Chloro-6-(ethylamino)pyridine-3-carboxylic acid (CAS 1019461-54-1)
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- Methyl 2-Chloro-5-(Methylamino)Isonicotinate (CAS 1034131-90-2)
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Recommended Standards
- 2-(4-Chlorophenyl)-2-methoxyacetic acid (CAS 4674-24-2)
- 2-(Aminooxy)-N-(4-chlorophenyl)acetamide (CAS 35251-43-5)
- 2-(4-Chlorophenyl)-2-hydroxypropionic Acid (CAS 4445-13-0)
- 2,3-Dimethoxybenzoyl chloride (CAS 7169-06-4)
- 2-(Tert-butyl) 8-methyl 4,4-difluoro-3,4-dihydroisoquinoline-2,8(1H)-dicarboxylate (CAS 1432515-24-6)
- (2,6-Dimethoxybenzyl)hydrazine (CAS 1016711-22-0)
- 3-((3-Chlorophenyl)sulfonyl)-6,7-difluoro-1-propylquinolin-4(1H)-one (CAS 1326860-25-6)
- 2-(3,4-Dichlorophenyl)-2-(1-piperidyl)acetonitrile (CAS 123567-60-2)
- Edoxaban Impurity 54 (1S,3R,4R) (CAS 1392745-59-3)
- 2-azabicyclo[2.1.1]hexan-4-amine;dihydrochloride (CAS 220593-82-8)
- (R)-3-Aminomethyl-2-Boc-3,4-dihydro-1H-isoquinoline (CAS 150417-18-8)
- 3-(Triphenylsilyl)-9H-carbazole (CAS 1335126-47-0)
- Exemestane EP Impurity I (CAS CATO-C4X-164122)
- Peptide 435 (CAS CATO-CPTD788435)
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