… Carboxylic acids with additional oxygen function and their anhydrides, halides, …
Explanatory notes
… 29.18 - Carboxylic acids with additional oxygen function and their anhydrides, halides, … oxygen function” means carboxylic acids which contain also one or more of the oxygen functions referred to in previous sub-Chapters (alcohol, ether, phenol, aldehyde, ketone, etc., …