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75424-71-4

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75424-71-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75424-71-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,2 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 75424-71:
(7*7)+(6*5)+(5*4)+(4*2)+(3*4)+(2*7)+(1*1)=134
134 % 10 = 4
So 75424-71-4 is a valid CAS Registry Number.

75424-71-4Relevant articles and documents

Regio- and Stereo-chemical Aspects of Photocycloaddition Between 1-Benzoylindoles and Olefins

Ikeda, Masazumi,Ohno, Kazunori,Mohri, Shin-ichiro,Takahashi, Masami,Tamura, Yasumitsu

, p. 405 - 412 (2007/10/02)

The regio- and stereo-selectivities in the photocycloaddition of a series of 1-benzoylindoles with vinyl acetate and methyl acrylate have been investigated.With some exceptions, the 1-benzoylindoles gave exclusively or predominatly the corresponding 1-acetoxy-3-benzoyl and 3-benzoyl-1-methoxycarbonyl-1,2,2a,7b-tetrahydro-3H-cyclobutindoles as mixtures of stereoisomers.

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