3-(2-Amino-4,5-dichlorophenoxy)-2-chlorobenzoic acid CAS 19191-36-7
| CAS No. | 19191-36-7 |
| Molecular Formula | C13H8Cl3NO3 |
| Molecular Weight | 332.57 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.
3-(2-Amino-4,5-dichlorophenoxy)-2-chlorobenzoic acid (CAS 19191-36-7) is a high-purity analytical reference standard with the molecular formula C13H8Cl3NO3 and a molecular weight of 332.57 g/mol.
Structurally, 3-(2-Amino-4,5-dichlorophenoxy)-2-chlorobenzoic acid (C13H8Cl3NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 332.57 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H8Cl3NO3 |
| Molecular Weight | 332.57 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.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 2,4,6-Trichloro-N-(3-methoxyphenyl)pyrimidine-5-carboxamide (CAS 87847-99-2)
- 4-aminoimidazole-5-thiocarboxamide (CAS 19208-58-3)
- 2-(3-Piperidinyl)ethyl 2-phenylacetate hydrochloride (CAS 1219979-69-7)
- N1-(1-(4-fluorophenyl)ethyl)-N1-methylethane-1,2-diamine (CAS 1249852-12-7)
- 2-(Hydroxymethyl)isonicotinic acid (CAS 915140-06-6)
- 3-(2,6-Dihydroxyphenyl)-7-hydroxy-5-methylisobenzofuran-1(3H)-one (CAS 479350-63-5)
- Methyl 2-Bromo-2-(3-methoxyphenyl)acetate (CAS 86215-57-8)
- 4-(4-Bromo-3-fluorophenoxy)piperidine (CAS 684249-71-6)
- 1-(2,4-Dichlorobenzyl)-3-(4-fluorobenzyl)imidazolidine-2,4,5-trione (CAS 341966-52-7)
- 5-Chlorofuran-2-sulfonyl chloride (CAS 443990-97-4)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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