2,5-Di-tert-butyl-3,6-dichloro-2,5-cyclohexadiene-1,4-dione CAS 33611-73-3
| CAS No. | 33611-73-3 |
| Molecular Formula | C14H18Cl2O2 |
| Molecular Weight | 289.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,5-Di-tert-butyl-3,6-dichloro-2,5-cyclohexadiene-1,4-dione (CAS 33611-73-3) is a high-purity analytical reference standard with the molecular formula C14H18Cl2O2 and a molecular weight of 289.20 g/mol.
Based on its molecular formula C14H18Cl2O2, 2,5-Di-tert-butyl-3,6-dichloro-2,5-cyclohexadiene-1,4-dione 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 289.20 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.
As a certified reference material (CRM), 2,5-Di-tert-butyl-3,6-dichloro-2,5-cyclohexadiene-1,4-dione 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 | C14H18Cl2O2 |
| Molecular Weight | 289.20 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
Recommended Standards
- 2,2'-(Adamantane-1,3-diyl)diacetyl chloride (CAS 31898-14-3)
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