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689258-25-1

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689258-25-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 689258-25-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,9,2,5 and 8 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 689258-25:
(8*6)+(7*8)+(6*9)+(5*2)+(4*5)+(3*8)+(2*2)+(1*5)=221
221 % 10 = 1
So 689258-25-1 is a valid CAS Registry Number.

689258-25-1Relevant articles and documents

Friedel-Crafts Alkylation of Aromatics by TiCl 4 -Promoted Ring Cleavage of 3-Arylcyclobutanones

Kanie, Mayu,Yoshimura, Tomoyuki,Matsuo, Jun-Ichi

, p. 548 - 554 (2017/11/15)

Ring cleavage of 3-arylcyclobutanones and successive Friedel-Crafts alkylation of methoxy- or alkyl-substituted benzene derivatives proceeded to give 3,3-diarylbutan-2-ones by activation with titanium tetrachloride.

Cycloalkyl alkanoic acids as integrin receptor antagonists derivatives

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Page 62, (2010/02/07)

The present invention relates to a class of compounds represented by the Formula I or a pharmaceutically acceptable salt thereof, pharmaceutical compositions comprising compounds of the Formula I, and methods of selectively inhibiting or antagonizing the αvβ3 and/or αvβ5 integrin.

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