Ethane1,2dicarboxylic acid or butanedioic acid "succinic acid" having a biobased carbon content of 100% by mass
Malonic acid, its salts and esters
Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excl. oxalic acid, adipic acid, azelaic acid, sebacic acid, malonic acid, their salts and esters, maleic anhydride, inorganic or organic compounds of mercury, and ethane1,2dicarboxylic acid or butanedioic acid "succinic acid" having a biobased carbon content of 100%)