4,4′-Dimethyl-trans-Stilbene
Chemical Intermediates 2025-03-02
CAS No.: 18869-29-9 | Molecular Weight: 208.30 g/mol
1. Chemical Identification
| Property |
Specification |
| IUPAC Name |
(E)-1,2-Bis(4-methylphenyl)ethene |
| Common Name |
4,4′-Dimethyl-trans-stilbene |
| Synonyms |
1-Methyl-4-[(E)-2-(4-methylphenyl)ethenyl]benzene; p,p’-Dimethyl-trans-stilbene |
| Molecular Formula |
C₁₆H₁₆ |
| CAS No. |
18869-29-9 |
| SMILES |
C2=C(\C=C\C1=CC=C(C)C=C1)C=CC(=C2)C |
| InChIKey |
KINZBJFIDFZQCB-VAWYXSNFSA-N |
2. Physical & Chemical Properties
| Parameter |
Value |
| Appearance |
White to off-white crystalline powder |
| Purity (HPLC) |
≥99% |
| Melting Point |
183°C (exp.) |
| Boiling Point |
325.5°C (calc.) |
| Flash Point |
157.8°C (calc.) |
| Density |
1.015 g/cm³ (calc.) |
| Solubility |
Soluble in THF, DCM; insoluble in water |
| Storage |
RT in amber glass container |
3. Production & Supply
| Parameter |
Detail |
| Annual Capacity |
200 metric tons |
| MOQ |
100g |
| Packaging |
100g (glass bottle), 1kg (aluminum foil bag), 25kg (fiber drum) |
| Shelf Life |
36 months when stored properly |
4. Quality Standards
| Test |
Specification |
| Purity (HPLC) |
≥99.0% |
| Isomeric Purity |
≥99.5% (trans-isomer) |
| Residue |
≤0.1% |
| Heavy Metals |
≤10 ppm |
5. Applications
- Organic Electronics:
- Key intermediate for OLED materials
- Building block for conjugated polymers
- Liquid Crystals:
- Mesogenic core for display materials
- Pharmaceutical Research:
- Scaffold for drug discovery
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