4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine
CAS254897-50-2
N,N'-[1,4-Phenylenebis(ethene-2,1-diyl)bis(4,1-phenylene)]bis(2-ethyl-6-methyl-N-phenylaniline) (CAS 254897-50-2) is a distyrylbenzene-based triarylamine (C52H48N2) that joins a conjugated bis-styryl core with two diarylamine end groups. Compounds of this class are studied as hole-transporting and emissive dopant materials for OLEDs and other organic electronic devices. KingPharm supplies this compound for research and production with a batch-specific certificate of analysis.
- CAS No.
- 254897-50-2
- Formula
- C52H48N2
- Mol. weight
- 700.97 g/mol
- Appearance
- Yellow-green Powder
Product Description
This compound is a symmetric distyrylbenzene bearing a triarylamine unit at each end. Each nitrogen carries a phenyl group and a 2-ethyl-6-methylphenyl group, and the two amine ends are connected through the 1,4-phenylenebis(vinylene) bridge, giving a fully conjugated, electron-rich molecule.
Triarylamine nitrogens donate electron density into the conjugated core, which makes molecules of this type easy to oxidize and suited to hole (positive charge) transport. The extended styryl conjugation shifts absorption and emission toward the visible region, which is why distyrylarylene amines are investigated as emissive dopants in host-guest emitting layers.
Compared with simple triarylamine hole-transport materials, the distyryl core adds light-emitting function on top of charge transport. The ortho ethyl and methyl groups twist the N-aryl ring out of plane, which tends to reduce close packing and crystallization in thin films, helping keep amorphous film morphology.
For device work, purity is the main concern: trace halides, metals or isomeric impurities can quench emission or trap charge. Buyers usually confirm HPLC purity, E/Z isomer content and appearance against the certificate of analysis, and request sublimed material when it is used directly in vacuum-deposited devices.
Chemical Specifications
Identifiers
| CAS number | 254897-50-2 |
|---|---|
| Product name | 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine |
| Chinese name | 4,4'-双(N-(2-甲基-6-乙基苯基)-N-苯基苯胺)对苯二乙烯 |
| IUPAC name | 2-ethyl-N-[4-[(E)-2-[4-[(E)-2-[4-(N-(2-ethyl-6-methylphenyl)anilino)phenyl]ethenyl]phenyl]ethenyl]phenyl]-6-methyl-N-phenylaniline |
| Molecular formula | C52H48N2 |
| Molecular weight | 700.97 g/mol |
| MDL number | MFCD11053415 |
| PubChem CID | 22957628 |
| InChIKey | FYUHQGOEPWMNGM-QAVVBOBSSA-N |
| SMILES | CCC1=CC=CC(=C1N(C2=CC=CC=C2)C3=CC=C(C=C3)C=CC4=CC=C(C=C4)C=CC5=CC=C(C=C5)N(C6=CC=CC=C6)C7=C(C=CC=C7CC)C)C |
Physical and chemical properties
| Appearance | Yellow-green Powder |
|---|---|
| Melting Point | 195.0-198.0 ( ℃ ) |
Applications
Distyrylarylene triarylamines are investigated in several areas of organic electronics:
OLED emissive dopant research
Studied as a guest dopant in host-guest emitting layers, where the distyryl core provides visible-region emission.
Hole-transport and hole-injection layers
The electron-rich triarylamine ends make it a candidate material for hole-transport or hole-injection layers in multilayer devices.
Organic photoconductors
Triarylamine-styryl compounds are a known class of charge-transport materials for organic photoconductor and electrophotographic research.
Structure-property studies
Used as a reference compound for studying how ortho-alkyl substitution and conjugation length affect film morphology and optoelectronic behavior.
Quality Documentation
The following documents can be provided for 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine to support technical evaluation and purchasing. Documents are issued for the specific grade and batch supplied.
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Certificate of Analysis (COA) Batch-specific test results against the specification.
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Product specification The release specification with test items, limits and methods.
Packaging, Storage & Transport
| Available pack sizes | 25 kg, 10 kg, 1 kg, 500 g, 100 g, 25 g |
|---|
Read the current safety data sheet before handling. Packaging can be adapted to the order quantity and destination.
Frequently Asked Questions
How does it differ from common triarylamine hole-transport materials?
Simple triarylamine hole-transport materials mainly carry charge, while this compound's distyrylbenzene core also gives visible-region emission, so it is more often studied as an emissive dopant. The ortho ethyl and methyl groups twist the N-aryl rings, which tends to reduce crystallization in thin films.
What should be checked before use in devices?
Confirm purity and E/Z isomer content against the certificate of analysis, since trace impurities can quench emission or trap charge. For vacuum-deposited devices, sublimed material is commonly requested; handle it under low light, because stilbene-type double bonds can photoisomerize.
How should it be stored?
Keep the container tightly closed in a cool, dry place, protected from light; storage under inert gas is recommended for device-grade material.
What is the CAS number of 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine?
The CAS Registry Number of 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine is 254897-50-2.
What is the molecular formula and molecular weight of 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine?
The molecular formula of 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine is C52H48N2, and its molecular weight is 700.97 g/mol.
What is 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine used for?
Distyrylarylene triarylamines are investigated in several areas of organic electronics:
Which quality documents are available for 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine?
The following documents are available for 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine: Certificate of Analysis (COA); Product specification. Contact KingPharm to request the documents for a specific batch.
How can I request a quotation for 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine?
Send an inquiry for 4,4'-(1,4-Phenylenedi-2,1-Ethenedily)Bis[N-(2-Ethyl-6-Methylphenyl)-N-Phenyl-Benzenamine (CAS 254897-50-2) with the required quantity, target specification, destination country and any documentation requirements. KingPharm will confirm availability, packaging, lead time and price.
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