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but-2-ynoic acid (benzylcarbamoyl-furan-2-yl-methyl)-tert-butyl-amide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

440121-41-5

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440121-41-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 440121-41-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,0,1,2 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 440121-41:
(8*4)+(7*4)+(6*0)+(5*1)+(4*2)+(3*1)+(2*4)+(1*1)=85
85 % 10 = 5
So 440121-41-5 is a valid CAS Registry Number.

440121-41-5Downstream Products

440121-41-5Relevant academic research and scientific papers

Studies on the sequential multi-component coupling/Diels-Alder cycloaddition reaction

Wright, Dennis L.,Robotham, Claude V.,Aboud, Khalil

, p. 943 - 946 (2002)

The synthesis of highly functionalized oxabicyclo[2.2.1]heptadiene derivatives through the sequential use of an Ugi or Passerini multi-component coupling reaction followed by an intramolecular acetylene/furan Diels-Alder reaction was investigated. The nature of the heteroatom in the tether was determined to play a critical role.

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