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99276-81-0

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99276-81-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99276-81-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,7 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99276-81:
(7*9)+(6*9)+(5*2)+(4*7)+(3*6)+(2*8)+(1*1)=190
190 % 10 = 0
So 99276-81-0 is a valid CAS Registry Number.

99276-81-0Downstream Products

99276-81-0Relevant articles and documents

Synthesis and properties of new binuclear nickel(II) phthalocyanines

Blikova,Ivanov,Tomilova,Shvedene

, p. 150 - 153 (2003)

New binuclear nickel(II) phthalonitrile complexes, viz., NiII 2,2′,9(10),9′(10′),17(18),17′(18′),24(25), 24′(25′)-tetra(phenylene-1,2-dioxy)bisphthalocyanine and Ni II 2,2′,9(10),9′(10′),17(18),17′(18′), 24(25),24′(25′)-tetra(4-tert-butyl-phenylene-1,2-dioxy) bisphthalocyanine, were synthesized. The complexes were characterized by electronic spectroscopy and MALDI-TOF mass spectrometry and studied as active components for membranes of ion-selective electrodes in solutions of dicarboxylic acids.

Binuclear phthalocyanines covalently linked through two- and four-atom bridges

Marcuccio, Sebastian M.,Svirskaya, Polina I.,Greenberg, Shafrira,Lever, A. B. P.,Leznoff, Clifford C.,Tomer, Kenneth B.

, p. 3057 - 3069 (2007/10/02)

Binuclear phthalocyanines in which the two phthalocyanine nuclei are covalently linked through four-atom bridges, derived from catechol, have been prepared and characterized.Metal-free 2,9,16,23-tetra-(3,3-dimethylbutyl)phthalocyanine and 2,9,16,23-tetra-(2-trimethylsilylethyl)phthalocyanine were prepared as examples of non-oxygenated mononuclear phthalocyanines soluble in organic solvents.Catalytic hydrogenation of 1,2-bis-(3,4-dicyanophenyl)ethyne and 1,4-bis-(3,4-dicyanophenyl)buta-1,3-diyne gave 1,2-bis-(3,4-dicyanophenyl)ethane and 1,4-bis-(3,4-dicyanophenyl)butane respectively.From these precursors, metal-free phthalocyanine dimers containing ethylene and tetramethylene bridges, joining the phthalocyanine nuclei, were prepared.Two of the two-atom bridge phthalocyanine dimers represent the first characterized phthalocyanine dimers not containing alkoxy or oxygenated groups.

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