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5,16-dibenzyl-5,16-dihydro-5,16-diphospha-tetraepoxy[22]annulen(2.1.2.1) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

444584-43-4

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444584-43-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 444584-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,4,5,8 and 4 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 444584-43:
(8*4)+(7*4)+(6*4)+(5*5)+(4*8)+(3*4)+(2*4)+(1*3)=164
164 % 10 = 4
So 444584-43-4 is a valid CAS Registry Number.

444584-43-4Downstream Products

444584-43-4Relevant academic research and scientific papers

5,16-Dialkyl(diaryl)-5,16-dihydro-5,16-diphospha-tetraepoxy[22]annulene (2.1.2.1)

M?rkl, Gottfried,Amrhein, Jürgen,Stoiber, Thomas,Striebl, Ulrich,Kreitmeier, Peter

, p. 2551 - 2567 (2007/10/03)

Several 5,16-dialkyl(diaryl)-5,16-dihydro-5,16-diphospha-tetraepoxy[22]annulenes (2.1.2.1) 9 as possible precursors of aromatic 5,16-diphospha-tetraepoxy[22]annulenes(2.1.2.1) 8 are synthesized by cyclizing Wittig-reactions of the phosphane dialdehydes 15 with the bis-ylids of the phosphane-bisphosphoniumsalts 19.

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