2917110091
- Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives
- Acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives
- Oxalic acid, its salts and esters
- Other
- Oxalic acid, whether in dihydrate (CUS number 0028635-1 and CAS number 6153-56-6) or anhydrous form (CUS number 0021238-4 and CAS number 144-62-7) and whether or not in aqueous solution