2918300035
- Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives
- Carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives
- 3-Oxocyclobutane-1-carboxylic acid with a purity by weight of 98 % or more (CAS RN 23761-23-1)