511 |
Hydrocarbons, n.e.s., and their halogenated, sulphonated, nitrated or nitrosated derivatives |
512 |
Alcohols, phenols, phenol alcohols, and their halogenated, sulphonated, nitrated or nitrosated derivatives |
513 |
Carboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives |
514 |
Nitrogen function compounds |
515 |
Organo inorganic compounds, heterocyclic compounds, nucleic acids and their salts, and sulphonamides |
516 |
Other organic chemicals |