2,4,6-Trichlorophenoxyacetic Acid CAS 575-89-3
| CAS No. | 575-89-3 |
| Molecular Formula | C8H5Cl3O3 |
| Molecular Weight | 255.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,4,6-Trichlorophenoxyacetic Acid (CAS 575-89-3) is a high-purity analytical reference standard with the molecular formula C8H5Cl3O3 and a molecular weight of 255.48 g/mol.
2,4,6-Trichlorophenoxyacetic Acid (C8H5Cl3O3) 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H5Cl3O3 |
| Molecular Weight | 255.48 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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.) | 1957 |
| Halogen Content | Cl-containing |
Related Trichlorophenoxyacetic Standards
Recommended Standards
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- 2,4,5-T (CAS 93-76-5)
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- Ethyl 1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1956321-24-6)
- 3-(2-Piperidyl)propanoic Acid (CAS 4088-33-9)
- 6-Fluoro-3-methylquinoxalin-2-ol (CAS 98416-68-3)
- 2-((4-Isopropylbenzyl)amino)acetic acid (CAS 88720-25-6)
- 3,4-Dichloro-5-iodoaniline (CAS 1803728-88-2)
- Octane-3,5-diol (CAS 24892-55-5)
- Ethyl 2-[(chlorosulfonyl)(methyl)amino]acetate (CAS 1249246-15-8)
- N-(4-Aminophenyl)-2-(4-methylphenoxy)butanamide (CAS 1020054-75-4)
- 5-(oxan-4-yl)-1H-1,2,3,4-tetrazole (CAS 1341756-98-6)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
Why CATO?
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