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1155879-75-6

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1155879-75-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1155879-75-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,5,8,7 and 9 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1155879-75:
(9*1)+(8*1)+(7*5)+(6*5)+(5*8)+(4*7)+(3*9)+(2*7)+(1*5)=196
196 % 10 = 6
So 1155879-75-6 is a valid CAS Registry Number.

1155879-75-6Downstream Products

1155879-75-6Relevant articles and documents

Parameters influencing the release of tertiary alcohols from the surface of "spherical" dendrimers and "linear" stylomers by neighbouring-group-assisted hydrolysis of 2-carbamoylbenzoates

Trachsel, Alain,De Saint Laumer, Jean-Yves,Haefliger, Olivier P.,Herrmann, Andreas

experimental part, p. 2846 - 2860 (2009/12/04)

The influence of structural and physico-chemical parameters on the release of a volatile tertiary alcohol (2-methyl-l -phenyl-2-propanol) by neighbouring-group-assisted cyclisation of 2-carbamoylbenzoates at neutral pH was investigated by comparing the covalent-bond cleavage from the surface of linear, comblike poly(propylene imine) "stylomers" and their corresponding spherical, globular dendrimers. Determination of the kinetic rate constants for the stepwise intramolecular cyclisation of the 2-carbamoylben- zoate moiety by using HPLC showed that the polarity of the conjugates, and thus their solubility in the aqueous reaction medium, has a stronger influence on the rates of hydrolysis than the size (generation) or shape (linear or spherical) of the macromolecules. Furthermore, structural modifications in close proximity to the release unit, such as the presence of functionalities with catalytic activity, have a strong impact on the release efficiency of the active molecules. An understanding of the physico-chemical parameters determining the local environment of the covalent-bond cleavage site is therefore an important prerequisite to transfer the characteristics of small molecules to larger structures such as oligomers and polymers and thus to design efficient macromolecular conjugates for the controlled delivery of bioactive compounds.

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