2,3,7,8-Tetrachloro-P-Dioxin CAS 1746-01-6
| CAS No. | 1746-01-6 |
| Molecular Formula | C12H4Cl4O2 |
| Molecular Weight | 321.97 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.
2,3,7,8-Tetrachloro-P-Dioxin (CAS 1746-01-6), molecular formula C12H4Cl4O2 and molecular weight 321.97 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2,3,7,8-Tetrachloro-P-Dioxin is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 321.97 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).
CATO manufactures 2,3,7,8-Tetrachloro-P-Dioxin 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 | C12H4Cl4O2 |
| Molecular Weight | 321.97 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
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Recommended Standards
- bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,3,4-oxadiazole (CAS 2214281-76-0)
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- 1,2,3,4-Tetrachlorodibenzo-p-dioxin (CAS 30746-58-8)
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