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134217-79-1

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134217-79-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134217-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,2,1 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 134217-79:
(8*1)+(7*3)+(6*4)+(5*2)+(4*1)+(3*7)+(2*7)+(1*9)=111
111 % 10 = 1
So 134217-79-1 is a valid CAS Registry Number.

134217-79-1Downstream Products

134217-79-1Relevant articles and documents

The Preparation of Analogues of the Ether-Linked Dimer and Oligomer Components of Hematoporphyrin Derivative

Byrne, Christopher J.,Ward, David A.

, p. 411 - 426 (2007/10/02)

The preparation of ether-linked porphyrin dimers and oligomers which are analogues of those present in the anticancer drugs hematoporphyrin derivative and Photofrin IIR is described.These materials are prepared from the appropriately substituted porphyrins containing a 1-hydroxyethyl or a vinyl side chain through an intermediate 1-bromoethyl derivative.Ether-linked porphyrin dimers with ethyl, formyl, hydroxymethyl and 1-alkoxyethyl side chains were prepared, together with trimers and tetramers containing ethyl side chains.Some of the spectroscopic and biological properties of these compounds are discussed.

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