3,5-Dichlorocatechol CAS 13673-92-2
| CAS No. | 13673-92-2 |
| Molecular Formula | C6H4Cl2O2 |
| Molecular Weight | 179.00 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.
CATO supplies 3,5-Dichlorocatechol (CAS 13673-92-2), a certified reference material (molecular formula C6H4Cl2O2, MW 179.00 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 3,5-Dichlorocatechol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.00 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H4Cl2O2 |
| Molecular Weight | 179.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1960 |
| Halogen Content | Cl-containing |
Related Dichlorocatechol Standards
Recommended Standards
- 2,6-Dichlorohydroquinone (CAS 20103-10-0)
- Sulfadoxine Impurity 2 (CAS 5018-38-2)
- 4-chloro-6-(chloromethyl)-1,3,5-triazin-2-amine (CAS 1139245-08-1)
- Phloroglucinol EP Impurity O (CAS 137-19-9)
- 2-Chloro-5-(5-ethoxycarbonyl-2-furoyl)pyridine (CAS 884504-84-1)
- 7-Chloro-5H-pyrrolo[3,2-d]pyrimidine (CAS 1934409-14-9)
- 25639-21-8 2-Propenoic acid, 2-methyl, octadecyl ester, homopolymer 2-Propenoic acid, 2-methyl-, octadecyl ester, homopolymer (CAS 25639-21-8)
- n-(2-(Pyridin-2-yl)ethyl)-1h-imidazole-1-carboxamide (CAS 1087797-67-8)
- (S)-1-(2,4,5-trifluorophenyl)but-3-en-1-amine (CAS 1269949-01-0)
- Methyl 3-fluoro-2-formylisonicotinate (CAS 1379375-20-8)
- Bis-μ-iodobis(ethylenediamine)diplatinum(II) nitrate (CAS 109998-76-7)
- (3-(4-Chlorophenyl)-5,6-dihydropyridazin-1(4H)-yl)(cyclopropyl)methanone (CAS 478261-57-3)
- 4,6-Diamino-3-phenyl-2,3-dihydrofuro[2,3-b]pyridine-5-carbonitrile (CAS 68846-29-7)
- Cycloaspeptide D (CAS 691363-62-9)
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