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1338456-40-8

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1338456-40-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1338456-40-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,8,4,5 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1338456-40:
(9*1)+(8*3)+(7*3)+(6*8)+(5*4)+(4*5)+(3*6)+(2*4)+(1*0)=168
168 % 10 = 8
So 1338456-40-8 is a valid CAS Registry Number.

1338456-40-8Downstream Products

1338456-40-8Relevant articles and documents

Synthesis, antimicrobial and DNA cleavage studies of some 4-aryloxymethylcoumarins obtained by reaction of 4-bromomethylcoumarins with bidentate nucleophiles

Makandar, Shabana Banu N.,Basanagouda, Mahantesha,Kulkarni, Manohar V.,Pranesha,Rasal, Vijaykumar P.

, p. 2603 - 2614 (2012/11/07)

Symmetrical bidentate nucleophiles such as resorcinol have been made to react with 4-bromomethylcoumarins in a cascaded manner to obtain mono and bis-4-aryloxymethylcoumarins by a room temperature allylic nucleophilic displacement. Unsymmetrical nucleophiles such as 3-acetylaminophenol and 3-diethylaminophenol have been used to generate 4-aryloxymethylcoumarins. All the compounds have been analyzed by spectralmethods and subjected to preliminary antibacterial, antifungal and DNA cleavage studies. The results showed that the compounds bearing methoxy, chloro and bromo substituents at C6-position of coumarin showed higher activity. Springer Science+Business Media, LLC 2011.

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