cas no 144-62-7 (Anhydrous) 6153-56-6 (Dihydrate) Ethanedioic acid, dihydrate; Oxaalzuur (Dutch)Oxalsäure (German); ácido oxálico (Spanish); Acide oxalique (French); Kyselina stavelova (Czech);oxalic acid ethanedioic acid Aktisal Aquisal oxalate Oxiric acid Oxalsaeure Oxaalzuur Kyselina stavelova Acide oxalique Acido ossalico Acidum oxalicum CAS:144-62-7