12,15,42,45-Tetrachloro-1,4(1,4)-dibenzenacyclohexaphane CAS 25826-07-7
| CAS No. | 25826-07-7 |
| Molecular Formula | C16H12Cl4 |
| Molecular Weight | 346.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 346.08 g/mol gives 12,15,42,45-Tetrachloro-1,4(1,4)-dibenzenacyclohexaphane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
12,15,42,45-Tetrachloro-1,4(1,4)-dibenzenacyclohexaphane (CAS 25826-07-7) is a high-purity analytical reference standard with the molecular formula C16H12Cl4 and a molecular weight of 346.08 g/mol.
Owing to chlorine substitution, a polycyclic aromatic system, 12,15,42,45-Tetrachloro-1,4(1,4)-dibenzenacyclohexaphane is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 346.08 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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), 12,15,42,45-Tetrachloro-1,4(1,4)-dibenzenacyclohexaphane 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 | C16H12Cl4 |
| Molecular Weight | 346.08 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- tert-Butyl 4-[5-(4-chlorophenyl)-1H-pyrazol-3-yl]piperidine-1-carboxylate (CAS 1042768-01-3)
- Methyl 1H-purine-2-carboxylate (CAS 95121-02-1)
- N-(2-Bromophenyl)pyridin-4-amine (CAS 86775-99-7)
- 4-(Methylthio)-2-(2-phenoxyphenyl)pyrido[3,4-d]pyrimidine (CAS 1092460-51-9)
- Glucose Impurity 1 (Mixture of isomers) (CAS 54166-09-5)
- Methyl 3-(aminomethyl)-4,4,4-trifluorobutanoate (CAS 1495146-87-6)
- 4-Bromo-3,5-diethyl-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazole (CAS 2550661-40-8)
- Peptide Impurity 64 (CAS CATO-CPTD788964)
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