Description

1-(3,5-Diethynylphenyl)-3,5-Diethynylbenzene is a high-purity, multi-functional organic building block characterized by its extended conjugated system and multiple reactive ethynyl groups. This compound matters for its critical role as a precursor in advanced materials science, enabling the synthesis of complex polymers and molecular architectures. It is primarily needed by researchers and manufacturers in the fields of organic electronics, nonlinear optics (NLO), and high-performance polymer resins, where precise molecular control is essential.

Application

• Advanced Polymer Synthesis: Serves as a key monomer for constructing rigid-rod polymers, dendrimers, and cross-linked networks with high thermal stability.
• Organic Electronic Materials: Used as a precursor for developing conductive polymers, organic semiconductors, and components for OLEDs and OFETs.
• Nonlinear Optical (NLO) Materials: Acts as a core building block for chromophores with high hyperpolarizability, used in photonic and electro-optic devices.
• Metal-Organic Framework (MOF) Linkers: The ethynyl groups facilitate coordination with metal ions to create porous, functional frameworks for catalysis or gas storage.
• Click Chemistry Substrate: Ideal for Huisgen cycloaddition and other alkyne-based "click" reactions for bioconjugation and material surface functionalization.
• Research & Development: A valuable intermediate in academic and industrial R&D for exploring new carbon-rich materials and molecular wires.

Basic Information

Product Name	1-(3,5-Diethynylphenyl)-3,5-Diethynylbenzene
CAS No.	189619-31-6
Molecular Formula	C22H10
Molecular Weight	274.32 g/mol
Synonyms	1,3,5-Tris(phenylethynyl)benzene (common name); 1,3,5-Triethynyl-1,3,5-triphenylbenzene; 1,1',1''-(Benzene-1,3,5-triyl)tris(ethyne-2,1-diyl)tribenzene; 3,3',3''-(Benzene-1,3,5-triyl)tri(prop-2-yn-1-ol) (derivative form); TPEB (abbreviation); Star-shaped triethynylbenzene derivative; Conjugated trialkynyl benzene; Multi-ethynyl arene linker
EINECS	Contact for details

Quality Control

Our 1-(3,5-Diethynylphenyl)-3,5-Diethynylbenzene is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical characterization, including HPLC, NMR, and GC-MS, to verify identity and quantify impurities. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We adhere to relevant ISO 9001 quality system standards to guarantee reliable supply for critical research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) in a cool, dry, and well-ventilated place. Due to its hygroscopic and easily oxidized nature, the container must be kept sealed and allowed to reach ambient temperature before opening to minimize moisture ingress and oxidative degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 10 ppm
Residual Solvents (GC)	Meets ICH guidelines
Water Content (KF)	< 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.