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153969-81-4

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153969-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 153969-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,3,9,6 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 153969-81:
(8*1)+(7*5)+(6*3)+(5*9)+(4*6)+(3*9)+(2*8)+(1*1)=174
174 % 10 = 4
So 153969-81-4 is a valid CAS Registry Number.

153969-81-4Relevant articles and documents

Donor-σ-Acceptor Molecules Incorporating a Nonadecyl-Swallowtailed Perylenediimide Acceptor

Wescott, Lyle D.,Mattern, Daniell Lewis

, p. 10058 - 10066 (2003)

Donor-σ-acceptor-lipid molecules were prepared by using perylenetetracarboxylic diimide as the acceptor, starting from perylenetetracarboxylic dianhydride. One imide nitrogen was attached to a "swallowtail" lipid (a long alkyl tail connected at midchain), which imparts enough solubility to make the system tractable and provides a lipophilic region suitable for promoting Langmuir-Blodgett monolayer formation. The other imide link was to a donor group (pyrene, ferrocene, tetramethylphenylenediamine, phenyl) through a short alkyl σ bridge. Features of the 1H and 13C NMR spectra of swallowtailed perylenediimides are interpreted as resulting from restricted rotation about the imide C-N bond; the 13C NMR spectra and stereochemistry of these molecules are contrasted with the case of the related bis-(2,5-di-tert-butylphenyl)perylenetetracarboxylic diimide.

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