… containing an unfused pyrazole ring (whether or not hydrogenated) in the structure : 2933.11 - - Phenazone … or not hydrogenated) in the structure : 2933.21 - - Hydantoin and its derivatives 2933.29 - - Other … - Compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure : 2933.52 …
… - Monophenols : 2907.11 - - Phenol (hydroxybenzene) and its salts 2907.12 - - Cresols and their … 2907.21 - - Resorcinol and its salts 2907.22 - - Hydroquinone (quinol) and its salts 2907.23 - - … - - Other Phenols are obtained by replacing one or more hydrogen atoms of the benzene ring by the hydroxyl radical …
… Compounds containing an unfused furan ring (whether or not hydrogenated) in the structure : 2932.11 - - Tetrahydrofuran … Compounds containing an unfused furan ring (whether or not hydrogenated) in the structure . This part includes, …
