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10-ethynyl-6-(3-ethynylphenyl)benzimidazoquinazoline is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77123-69-4

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77123-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77123-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,2 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77123-69:
(7*7)+(6*7)+(5*1)+(4*2)+(3*3)+(2*6)+(1*9)=134
134 % 10 = 4
So 77123-69-4 is a valid CAS Registry Number.

77123-69-4Downstream Products

77123-69-4Relevant academic research and scientific papers

Facile Synthesis of Ethynylated Benzoic Acid Derivatives and Aromatic Compounds via Ethynyltrimethylsilane

Austin, William B.,Bilow, Norman,Kelleghan, William J.,Lau, Kreisler S. Y.

, p. 2280 - 2286 (2007/10/02)

The coupling reaction between an aromatic halide and ethynyltrimethylsilane under the catalysis of palladium(0) generated in situ, followed by treatment of the (trimethylsilyl)ethynyl product with potassium carbonate in methanol at ambient temperatures, provides a simple approach to various ethynylated benzoic acid derivatives and other aromatic compounds.The conditions for the removal of the trimethylsilyl group were very mild, so that base-sensitive functionalities on the aromatic moiety could be tolerated.

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