1,2,4,5-Tetraethynylbenzene

Name: 1,2,4,5-Tetraethynylbenzene
Brand: ChemScene
Availability: InStock
Rating: 5 (1 reviews)

CAS No. 70603-31-5
Cat. No. CS-0110362
Purity≥98%
MDL No.MFCD30533936

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HazMat Fee

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Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

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Type	HazMat Fee
Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
Hazmat Ground shipping	$50.00+
Inaccessible (Haz class 6.1 or 9), Domestic	$68.00+
Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
Inaccessible (Haz class 6.1 or 9), International	$108.00+
Accessible (Haz class 3, 4, 5 or 8), International	$238.00+

An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

*For research and further manufacturing use only, not for direct human use.

Structure of 70603-31-5

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Description

1,2,4,5-Tetraethynylbenzene is a highly conjugated aromatic scaffold featuring four terminal alkyne groups at strategic positions on the benzene ring. This geometry enables efficient metal-catalyzed coupling reactions, facilitating the construction of complex 2D and 3D molecular architectures. The molecule's rigidity and electron-rich character support applications in materials science and supramolecular chemistry.

Application

1,2,4,5-Tetraethynylbenzene serves as a versatile tetraynyl building block for constructing extended π-conjugated systems and rigid molecular scaffolds. Its four terminal alkyne groups enable efficient copper-catalyzed [2+2] or Glaser-type coupling reactions, facilitating the synthesis of high-molecular-weight polyynes and porous organic frameworks. The compound exhibits excellent bench stability and compatibility with standard purification techniques, making it well-suited for iterative cross-coupling protocols in materials science and synthetic organic chemistry applications.

General Information

CAS No. 70603-31-5
Cat. No. CS-0110362
Purity ≥98%
MDL No. MFCD30533936
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₄H₆
Molecular Weight 174.20
Synonym(s) None
SMILES C#CC1=C(C=C(C(C#C)=C1)C#C)C#C

Computational Chemistry Data

TPSA 0
LogP 1.6118
H_Acceptors 0
H_Donors 0
Rotatable_Bonds 0

Safety Information

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GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H317-H320-H402
Precautionary Statements : P261-P264-P272-P273-P280-P302+P352-P501

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Key Words

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1,2,4,5-Tetraethynylbenzene

CAS No. 70603-31-5

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