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(5S,6S)-6-[(E)-3-(tert-Butyl-diphenyl-silanyloxy)-2-methyl-propenyl]-9-[1-butylsulfanyl-meth-(E)-ylidene]-4-methoxy-1-oxa-spiro[4.5]dec-3-ene-2,8-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

123719-31-3

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123719-31-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123719-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,1 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123719-31:
(8*1)+(7*2)+(6*3)+(5*7)+(4*1)+(3*9)+(2*3)+(1*1)=113
113 % 10 = 3
So 123719-31-3 is a valid CAS Registry Number.

123719-31-3Relevant academic research and scientific papers

Synthesis of the Chiral Upper Fragment of Tetronolide

Matsuda, Koji,Nomura, Keiichi,Yoshii, Eiichi

, p. 221 - 223 (1989)

The chiral upper fragment (3) of tetronolide (1) was synthesized via spiroannulation of optically active cyclohexanone derivative (5) with trans-β-methoxyacrylate and subsequent functionalization of the resulting spirotetronate (6).

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