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477960-55-7

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477960-55-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 477960-55-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,7,7,9,6 and 0 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 477960-55:
(8*4)+(7*7)+(6*7)+(5*9)+(4*6)+(3*0)+(2*5)+(1*5)=207
207 % 10 = 7
So 477960-55-7 is a valid CAS Registry Number.

477960-55-7Downstream Products

477960-55-7Relevant articles and documents

Synthesis and structural characterization of new stiff rod oligomeric domains by X-ray crystallography and NMR

Krebs, Frederik C.,Jorgensen, Mikkel

, p. 7511 - 7518 (2007/10/03)

The monomers N,N′-dibenzylbenzene-1,4-diamine (1), N,N′-dibenzylnaphthalene-1,5-diamine (2), and N,N′-dibenzylanthracene-1,9-diamine (3) were reacted with phosgene in the presence of a base to produce the corresponding N,N′-dibenzyl-1,4-bis(chlorocarbonylamino)benzene (4), N,N′-dibenzyl-1,5-bis(chlorocarbonylamino)naphthalene (5), and N,N′-dibenzyl-9,10-bis(chlorocarbonylamino)anthracene (6). These monomers were used to create zigzag type stacks, in a stepwise fashion, of trimers and 9-mers of either 1,4-diureidobenzenes (PheK(3) and PheK(9)) or 1,5-diureidonaphthalenes (NapK(3) and NapK(9)). A byproduct in the formation of PheK(9) was a cyclic hexamer PheK(6). NMR gave evidence of the structure in solution while X-ray crystallographic information was obtained for 5, 6, NapK(3), and the cyclic PheK(6).

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