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2-ethynyl-2-phenyl-1,3-indandione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

127783-38-4

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127783-38-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127783-38-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,7,8 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 127783-38:
(8*1)+(7*2)+(6*7)+(5*7)+(4*8)+(3*3)+(2*3)+(1*8)=154
154 % 10 = 4
So 127783-38-4 is a valid CAS Registry Number.

127783-38-4Upstream product

127783-38-4Downstream Products

127783-38-4Relevant academic research and scientific papers

Synthesis of Ethynyl(phenyl)iodonium Tetrafluoroborate. A New Reagent for Ethynylation of 1,3-Dicarbonyl Compounds

Ochiai, Masahito,Ito, Takao,Takaoka, Yoshikazu,Masaki, Yukio,Kunishima, Munetaka,et al.

, p. 118 - 119 (1990)

Hydrogen fluoride-induced protiodetrimethylsilylation of trimethylsilylethynyl(phenyl)iodonium tetrafluoroborate (5), prepared from bis(trimethylsilyl)ethyne (4), affords ethynyl(phenyl)iodonium tetrafluoroborate (1), a reagent for α-ethynylation of β-dic

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