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69448-56-2

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69448-56-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69448-56-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,4,4 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 69448-56:
(7*6)+(6*9)+(5*4)+(4*4)+(3*8)+(2*5)+(1*6)=172
172 % 10 = 2
So 69448-56-2 is a valid CAS Registry Number.

69448-56-2Downstream Products

69448-56-2Relevant articles and documents

Synthesis And Spectroscopic Properties Of Soluble Aza Analogs Of Phthalocyanine and Naphthalocyanine

Gal'pern, M. G.,Kudrevich, S. V.,Novozhilova, I. G.

, p. 49 - 54 (1993)

The syntheses of aryl-substituted octaaza analogs of phthalocyanine - tetra-2,3-(4,5-dipenylpyrazino)porphyrazin and its vanadyl complex - and also of the vanadyl complex of tetra-2,3-(4-phenylquinolino)porphyrazin - a tetraaza analog of naphthalocyanine - are described.A modified singlestage method for the synthesis of the previously reported tetra-2,3-(5-tert-butylpyrazino)porphyrazin is put forward.The electronic absorption spectra of the compounds synthesized have been studied in organic solvents and acid media - in sulfuric acid solution and in organic solvents with the addition of phenol or trichloroacetic acid.

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