3,4,5-Trichlorocatechol CAS 56961-20-7
| CAS No. | 56961-20-7 |
| Molecular Formula | C6H3Cl3O2 |
| Molecular Weight | 213.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3,4,5-Trichlorocatechol.
3,4,5-Trichlorocatechol (CAS 56961-20-7) is a high-purity analytical reference standard with the molecular formula C6H3Cl3O2 and a molecular weight of 213.45 g/mol.
The molecular framework of 3,4,5-Trichlorocatechol (C6H3Cl3O2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3,4,5-Trichlorocatechol 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 | 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.) | 1973 |
| Halogen Content | Cl-containing |
Related Trichlorocatechol Standards
Recommended Standards
- 2-Chloro-1-(4,5-dichloro-1H-imidazol-2-yl)ethanone (CAS 76431-05-5)
- 2,4,6-Trichloro-5-methoxypyrimidine (CAS 60703-46-0)
- 4,5,6-Trichloro-2-methylpyridazin-3(2H)-one (CAS 37648-42-3)
- 2,2,2-Trichloro-1-(furan-3-yl)ethan-1-one (CAS 743420-66-8)
- 1-(3-(Hydroxymethyl)piperidin-1-yl)-2-(1H-1,2,4-triazol-1-yl)ethan-1-one (CAS 1156234-57-9)
- 6-(Hydroxymethyl)-4-(3-methoxypropyl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 857272-03-8)
- 3-Amino-2-{[4-(dimethylamino)phenyl]methyl}propanoic acid dihydrochloride (CAS 1427380-32-2)
- Tazobactam Impurity 32 (CAS CATO-C4X-120532)
- 5-(Propan-2-yl)thiophene-3-sulfonyl chloride (CAS 1245823-84-0)
- N-(3-ethoxy-4-methoxybenzyl)cycloheptanamine (CAS 673446-42-9)
- Acetaminophen EP Impurity H (CAS 2623-33-8)
- Vazegepant impurity 33 (CAS 1061710-38-0)
- Methyl 2-(benzyloxy)-5-(hydroxymethyl)benzoate (CAS 1126794-76-0)
- C-Peptide 1 (rat) (CAS 41475-27-8)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com