2,6-Dichlorohydroquinone CAS 20103-10-0
| CAS No. | 20103-10-0 |
| Molecular Formula | C6H4Cl2O2 |
| Molecular Weight | 179.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 179.00 g/mol gives 2,6-Dichlorohydroquinone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,6-Dichlorohydroquinone (CAS 20103-10-0) is a high-purity analytical reference standard with the molecular formula C6H4Cl2O2 and a molecular weight of 179.00 g/mol.
Based on its molecular formula C6H4Cl2O2, 2,6-Dichlorohydroquinone contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 179.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | >95% |
| 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.) | 1962 |
| Halogen Content | Cl-containing |
Related Dichlorohydroquinone Standards
Recommended Standards
- Sulfadoxine Impurity 2 (CAS 5018-38-2)
- 3,5-Dichlorocatechol (CAS 13673-92-2)
- Phloroglucinol EP Impurity O (CAS 137-19-9)
- 4,5-Dichlorocatechol (CAS 3428-24-8)
- 4-Bromo-2,6-dinitrobenzoic Acid (CAS 95192-56-6)
- (3-Methoxy-4-(prop-2-yn-1-yloxy)phenyl)methanol (CAS 385383-48-2)
- 2,5-dimethyl-1-(2,3,4-trifluorophenyl)-1H-pyrrole-3-carbaldehyde (CAS 923832-17-1)
- 3-(Difluoromethoxy)-7-methylbenzofuran-2-carboxylic acid (CAS 1774901-76-6)
- 6-Amino-4-trifluoromethylquinolin-2(1H)-one, 97% (CAS 328955-57-3)
- 2-[(2E)-2-Cyano-3-(4-methoxyphenyl)prop-2-enamido]acetic acid (CAS 461683-16-9)
- 3-(Diethylamino)-N-(2,6-dimethylphenyl)propanamide (CAS 21236-52-2)
- (E)-2-(3-((2,6-difluorophenyl)amino)-1-(dimethylamino)allylidene)malononitrile (CAS 338773-86-7)
- Tofacitinib Impurity 9 (CAS 2250243-18-4)
- DAPK Substrate Peptide (CAS 386769-53-5)
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