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549520-99-2

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549520-99-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 549520-99-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,9,5,2 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 549520-99:
(8*5)+(7*4)+(6*9)+(5*5)+(4*2)+(3*0)+(2*9)+(1*9)=182
182 % 10 = 2
So 549520-99-2 is a valid CAS Registry Number.

549520-99-2Relevant articles and documents

New chiral π-conjugated polymers based on a (1R,2R)-diiminocyclohexane chiral unit with weak interchain π stacking

Lere-Porte, Jean-Pierre,Moreau, Joel J. E.,Serein-Spirau, Francoise,Wakim, Salem

, p. 3020 - 3021 (2002)

New chiral π-conjugated polymers consisting of alternating conjugated segments and (1R,2R)-diiminocyclohexane units with C2 symmetry were prepared by a palladium-catalyzed coupling reaction, they exhibited very high specific optical rotations ([α] up to -3000°) and strong Cotton effects ([θ] 106 deg cm2 mol-1).

An easy and clean synthesis of chiral 3,4-diaryl-2,5-diazabicyclo[4.4.0]decanes by reductive intramolecular coupling of chiral diimines

Hesemann, Peter,Moreau, Joel J. E.,Soto, Thierry

, p. 183 - 189 (2007/10/03)

A clean and efficient reductive intramolecular coupling of diimines prepared from (1R,2R)-cyclohexanediamine gave chiral 2,3-diarylpiperazines.

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