1,2-Diethynylbenzene

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

CAS No. 21792-52-9
Cat. No. CS-0449634
Purity≥98%
MDL No.None

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HazMat Fee

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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 21792-52-9

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Description

1,2-Diethynylbenzene features a rigid, linear aromatic core flanked by two ethynyl groups, enabling efficient conjugation and serving as a key scaffold in π-extended materials. This electron-rich diyne integrates readily into click chemistry platforms and facilitates the construction of functionalized carbon nanomaterials with tunable optoelectronic properties under standard conditions.

Application

1,2-Diethynylbenzene serves as a versatile building block in transition-metal-catalyzed coupling reactions, enabling the construction of conjugated biaryls and extended π-systems. Its ortho-arranged ethynyl groups facilitate efficient cyclization and metal coordination, supporting applications in materials science and heterocyclic synthesis. The compound exhibits good bench stability and is amenable to purification via standard chromatographic methods, making it suitable for iterative synthetic workflows.

General Information

CAS No. 21792-52-9
Cat. No. CS-0449634
Purity ≥98%
MDL No. None
Storage 4°C, stored under nitrogen
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₀H₆
Molecular Weight 126.15
Synonym(s) Benzene, 1,2-diethynyl- (9CI)
SMILES C#CC1=CC=CC=C1C#C

Computational Chemistry Data

TPSA 0
LogP 1.6492
H_Acceptors 0
H_Donors 0
Rotatable_Bonds 0

Safety Information

Download SDS

GHS Pictogram :	GHS No : GHS07
Signal Word : Warning	UN#: N/A
Class : N/A	Packing Group : N/A
Hazard Statements : H227-H302
Precautionary Statements : P210-P264-P270-P280-P330-P370+P378-P403-P501

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Other Classifications

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Life Science Click Chemistry Reagents Alkyne

Chemical Biology Pharmaceutical Development and Drug Discovery Research Conjugation Chemistry/Click Chemistry Terminal Alkynes

Chemical Biology Conjugation Chemistry/Click Chemistry Terminal Alkynes

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1,2-Diethynylbenzene

CAS No. 21792-52-9

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