3,4,6-Trichlorocatechol CAS 32139-72-3
| CAS No. | 32139-72-3 |
| Molecular Formula | C6H3Cl3O2 |
| Molecular Weight | 213.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4,6-Trichlorocatechol (CAS 32139-72-3) is a high-purity analytical reference standard with the molecular formula C6H3Cl3O2 and a molecular weight of 213.45 g/mol.
Structurally, 3,4,6-Trichlorocatechol (C6H3Cl3O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 213.45 g/mol, it falls into the medium-molecular-weight range. 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).
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), 3,4,6-Trichlorocatechol 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 | C6H3Cl3O2 |
| Molecular Weight | 213.45 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
Related Trichlorocatechol Standards
Recommended Standards
- 4,5,6-Trichloro-2-methylpyridazin-3(2H)-one (CAS 37648-42-3)
- 2-Chloro-1-(4,5-dichloro-1H-imidazol-2-yl)ethanone (CAS 76431-05-5)
- 4,5-Dichloro-2-(chloromethyl)pyridazin-3(2H)-one (CAS 51356-03-7)
- 2,4,6-Trichloro-5-methoxypyrimidine (CAS 60703-46-0)
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- Tetrabutylammonium (CAS 10549-76-5)
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- Custom peptides (CAS CATO-CPTD788509)
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