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431043-99-1

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431043-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 431043-99-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,0,4 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 431043-99:
(8*4)+(7*3)+(6*1)+(5*0)+(4*4)+(3*3)+(2*9)+(1*9)=111
111 % 10 = 1
So 431043-99-1 is a valid CAS Registry Number.

431043-99-1Downstream Products

431043-99-1Relevant articles and documents

Antiangiogenic activity of synthetic dihydrobenzofuran lignans

Apers, Sandra,Paper, Dietrich,Buergermeister, Jutta,Baronikova, Slavka,van Dyck, Stefaan,Lemiere, Guy,Vlietinck, Arnold,Pieters, Luc

, p. 718 - 720 (2007/10/03)

A series of synthetic dihydrobenzofuran lignans, obtained by biomimetic oxidative dimerization of caffeic or ferulic acid methyl ester followed by derivatization reactions, was tested for its antiangiogenic activity in the CAM (chorioallantoic membrane) a

3',4-Di-O-methylcedrusin: synthesis, resolution and absolute configuration

Lemiere, Guy,Gao, Mei,Groot, Alex De,Dommisse, Roger,Lepoivre, Josef,et al.

, p. 1775 - 1780 (2007/10/02)

The title compound has been synthesised in racemic form by a biomimetic reaction sequence.The two enantiomers were resolved by column cromatography of one of the synthetic intermediates.On the basis of CD results a tentative absolute configuration for the synthetic enantiomers and natural 3',4-di-O-methylcedrusin is proposed.

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