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203576-39-0

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203576-39-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203576-39-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,5,7 and 6 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 203576-39:
(8*2)+(7*0)+(6*3)+(5*5)+(4*7)+(3*6)+(2*3)+(1*9)=120
120 % 10 = 0
So 203576-39-0 is a valid CAS Registry Number.

203576-39-0Relevant articles and documents

Modular synthesis of chiral pentadentate bis(oxazoline) ligands

Seitz, Michael,Kaiser, Anja,Tereshchenko, Alexander,Geiger, Christian,Uematsu, Yukitaka,Reiser, Oliver

, p. 9973 - 9980 (2007/10/03)

Highly modular N,Y,Z,Y,N-ligands (Y=N, O, S; Z=N, NO, OH, OMe) have been prepared using bis(oxazoline) building blocks either as nucleophiles or as electrophiles in coupling reactions with central aromatic units. This way, a great variety of pentadentate

Asymmetric conjugate addition reaction

-

Page column 17, 18, 29, 30, (2010/01/30)

This invention relates to a key intermediate in the synthesis of an endothelin antagonist the synthesis of this key intermediate via an asymmetric conjugate addition reaction.

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