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1-hydroxy-1-phenyl-1H-isothiochromene-3,4-dicarboxylic acid dimethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

269744-35-6

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269744-35-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 269744-35-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,9,7,4 and 4 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 269744-35:
(8*2)+(7*6)+(6*9)+(5*7)+(4*4)+(3*4)+(2*3)+(1*5)=186
186 % 10 = 6
So 269744-35-6 is a valid CAS Registry Number.

269744-35-6Downstream Products

269744-35-6Relevant academic research and scientific papers

Oxidation of 1H-2-benzoselenopyrans. Generation of benzoselenophenes, benzaldehydes, and benzophenones

Okuma, Kentaro,Kojima, Kazuki,Koga, Yuji,Shioji, Kosei

, p. 1021 - 1024 (2007/10/03)

Oxidation of 1H-2-benzoselenopyrans bearing electron-withdrawing substituents gave benzoselenophenes, benzaldehydes, and benzophenone derivatives via the corresponding selenoxides followed by Pummerer and [3,3]sigmatropic rearrangements.

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