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1403336-55-9

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1403336-55-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1403336-55-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,3,3,3 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1403336-55:
(9*1)+(8*4)+(7*0)+(6*3)+(5*3)+(4*3)+(3*6)+(2*5)+(1*5)=119
119 % 10 = 9
So 1403336-55-9 is a valid CAS Registry Number.

1403336-55-9Downstream Products

1403336-55-9Relevant articles and documents

Lewis acid-catalyzed Friedel-Crafts alkylations of 3-hydroxy-2-oxindole: An efficient approach to the core structure of azonazine

Ghosh, Santanu,Kinthada, Lakshmana K.,Bhunia, Subhajit,Bisai, Alakesh

, p. 10132 - 10134 (2012/11/13)

A Lewis acid catalyzed Friedel-Crafts reaction of electron rich aromatics with 3-alkyl-3-hydroxy-2-oxindole (5) has been developed. The methodology provides a straightforward access to the core of azonazine (2) sharing an all-carbon quaternary stereocenter at the tetracyclic ring junction. The Royal Society of Chemistry 2012.

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