3-chloro-4-(2,3-dichlorophenoxy)benzoic acid CAS 1406477-36-8
| CAS No. | 1406477-36-8 |
| Molecular Formula | C13H7Cl3O3 |
| Molecular Weight | 317.55 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-chloro-4-(2,3-dichlorophenoxy)benzoic acid (CAS 1406477-36-8) is a high-purity analytical reference standard with the molecular formula C13H7Cl3O3 and a molecular weight of 317.55 g/mol.
3-chloro-4-(2,3-dichlorophenoxy)benzoic acid (C13H7Cl3O3) 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, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 3-chloro-4-(2,3-dichlorophenoxy)benzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C13H7Cl3O3 |
| Molecular Weight | 317.55 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
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- 4-Iodo-1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-amine hydrochloride (CAS 1431970-10-3)
- tert-Butyl 4-(4-fluorophenyl)-3-oxopiperazine-1-carboxylate (CAS 1284243-44-2)
- 4-(Ethylsulfonyl)-N-(4-(pyridin-2-yl)thiazol-2-yl)benzamide (CAS 896365-82-5)
- methyl 4-hydroxy-4-methylpiperidine-1-carboxylate (CAS 1534779-33-3)
- Semaglutide Impurity 15 (CAS CATO-C4X-222615)
Why CATO?
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