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124856-07-1

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124856-07-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124856-07-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,8,5 and 6 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 124856-07:
(8*1)+(7*2)+(6*4)+(5*8)+(4*5)+(3*6)+(2*0)+(1*7)=131
131 % 10 = 1
So 124856-07-1 is a valid CAS Registry Number.

124856-07-1Downstream Products

124856-07-1Relevant articles and documents

Functionalized meso-Arylporphyrins, Precursors for the Synthesis of Oligoporphyrinyls

Hammel, Dirk,Kautz, Christian,Muellen, Klaus

, p. 1353 - 1356 (2007/10/02)

Lithiation and subsequent formylation of bromo-substituted tetraarylporphyrins 3a-d, prepared under Adler-Rothemund conditions, afford a mixture of the porphyrinylbenzaldehydes 4a-d and the corresponding dialdehydes (cis and trans isomer) 7a/7d and 8a/8d, which may be isolated by column chromatography.The readily available porphyrins are suitable precursors for the synthesis of oligoporphyrinyl systems which is demonstrated for the case of the novel stilbene-linked diporphyrinyl 12.Alkyl substitution of the nonfunctionalized aryl groups brings about sufficient solubility of the porphyrins in organic solvents.

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