This invention relates to the field of contaminated plastic waste decomposition. More specifically, the invention comprises methods and systems to decompose contaminated plastic waste and transform it into value-added products.

This invention relates to the field of contaminated plastic waste decomposition. More specifically, the invention comprises methods and systems to decompose contaminated plastic waste and transform it into value-added products.

This invention relates to the field of plastic waste decomposition. More specifically, the invention comprises products obtained from the decomposition of plastic waste.

This invention relates to the field of contaminated plastic waste decomposition. More specifically, the invention comprises methods and systems to decompose contaminated plastic waste and transform it into value-added products.

A resveratrol ester has the following structure:

##STR00001##

R.sup.1, R.sup.2 and R.sup.3 are H or

##STR00002##

Each R.sup.4 is independently a carbon chain of 2 to 4 carbon atoms comprising a terminal carboxylic acid moiety, a carbon chain of 1 to 5 carbon atoms comprising an amine moiety, or

##STR00003##

R.sup.5 is a carbon chain of 3 or 4 carbon atoms having a terminal carboxylic acid moiety. At least one of R.sup.1, R.sup.2 and R.sup.3 is

##STR00004##

Salts of resveratrol esters are also included.

A resveratrol ester has the following structure:

##STR00001##

R.sup.1, R.sup.2 and R.sup.3 are H or

##STR00002##

Each R.sup.4 is independently a carbon chain of 2 to 4 carbon atoms comprising a terminal carboxylic acid moiety, a carbon chain of 1 to 5 carbon atoms comprising an amine moiety, or

##STR00003##

R.sup.5 is a carbon chain of 3 or 4 carbon atoms having a terminal carboxylic acid moiety. At least one of R.sup.1, R.sup.2 and R.sup.3 is

##STR00004##

Salts of resveratrol esters are also included.

Provided herein are compounds and methods of using the compounds for determining levels of, for example, para-hydroquinones in a sample.

Provided herein are compounds and methods of using the compounds for determining levels of, for example, para-hydroquinones in a sample.

The present invention relates to novel compounds of polyfunctionalized polyethylene and polypropylene glycols, their synthesis and their use, in particular as tracers in applications related to oil and gas production, and especially as specific markers of various target fluids.

The present invention relates to novel compounds of polyfunctionalized polyethylene and polypropylene glycols, their synthesis and their use, in particular as tracers in applications related to oil and gas production, and especially as specific markers of various target fluids.