Diphenylacetylene

CAS 501-65-5C6H5C≡CC6H5Chemical Synthesis

Diphenylacetylene (CAS: 501-65-5), with the molecular formula C₁₄H₁₀ and a molecular weight of 178.23 g/mol, is a symmetrical diarylalkyne. This organic compound serves as a valuable building block in organic synthesis, particularly in the construction of complex molecular architectures and functional materials. Its rigid rod-like structure and reactive alkyne moiety make it a key intermediate in various chemical transformations and research applications.

IUPAC: Tolan
Synonyms: Tolan

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Diphenylacetylene (C6H5C≡CC6H5) — chemical structure, CAS 501-65-5; Chemistry, fine chemical supplied by Tech Serve Solutions

AlkynesBuilding BlocksChemical SynthesisInternalOrganic Building Blocks

01 /Applications

Organic Synthesis Intermediate

Diphenylacetylene is widely employed as a precursor in organic synthesis. It participates in cyclisation reactions, transition-metal catalysed couplings, and polymerisation processes to create novel organic structures.

Materials Science Research

Its rigid and linear structure makes it useful in the development of organic electronic materials, liquid crystals, and fluorescent compounds. Researchers utilise it to explore new materials with tailored optical and electronic properties.

Ligand Synthesis

The compound can be incorporated into the synthesis of specialised ligands for coordination chemistry. These ligands are often used in catalysis or as components in metallo-organic frameworks.

02 /Properties

Molecular weight	178.23
Linear formula	C6H5C≡CC6H5
Assay	98%
Boiling point	170 °C/19 mmHg(lit.)
Density	0.99 g/mL at 25 °C(lit.)
Melting point	59-61 °C(lit.)

03 /Safety & handling

Protective equipment	Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
Water hazard class (WGK, DE)	3

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

501-65-5

MDL number

MFCD00004786

PubChem substance

24893607

Beilstein registry

606478

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is Diphenylacetylene used for?

Diphenylacetylene is primarily used as an intermediate in organic synthesis, a building block for complex molecules, and in research for materials science and ligand development.

What are the CAS number and formula for Diphenylacetylene?

The CAS number for Diphenylacetylene is 501-65-5, and its linear formula is C₆H₅C≡CC₆H₅ (C₁₄H₁₀).

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies Diphenylacetylene with an assay of 98%. We do not represent this product as USP, EP, or BP grade; it is suitable for research and chemical synthesis purposes.

How should Diphenylacetylene be handled safely?

Handling Diphenylacetylene requires appropriate personal protective equipment, including eyeshields and gloves. A respirator filter (type N95 US or P1 EN143) is recommended. Refer to the Safety Data Sheet for comprehensive handling guidelines.

How is Diphenylacetylene packed, shipped, and exported?

Diphenylacetylene is carefully packed to ensure stability during transit and is available for domestic and international export by Tech Serve Solutions.

How can I request a sample or a quote for Diphenylacetylene?

To request a sample or a quote for Diphenylacetylene, please contact our sales department via the website or by phone, providing your specific requirements.