Luokka Orgaaniset yhdisteetbulgariaenglantiespanjaesperantohollantiitaliajapanikreikkalatinalatvialiettuanorjaportugalipuolaranskaruotsisaksasuomitanskaturkkitšekkiunkarivenäjäviro

hexamethylcyclotrisiloxane hexamethyldisilazane hexamethylenamin hexamethylene hexamethylene diamine hexamethylenediamine hexanal hexane hexanediol hexanitrodiphenylamine hexanoic acid hexanol hexanone hexatriacontane hexatriene hexdecyl hexenal hexene hexenoic acid hexine hexone hexuronic acid hexylamine hexylresorcinol hexylthiophene hexynoic acid HFC himachalane hinokinin hippuric acid homatropine homoalanine homoproline homopropargylglycine

homosalate homotaurine honokiol hopkinsiaxanthin hordeic acid hordein housane hyaluronic acid hydantoin hydergine hydramide hydrastine hydrocarbostyril hydrocinnamic acid hydrokryptoacetylene hydrophlorone hydroquinone hydrosorbic acid hydroxyacetone hydroxyanisole hydroxyanthraquinone hydroxybenzene hydroxybenzoic acid hydroxybenzoquinone hydroxybutyric acid hydroxychavicol hydroxycinnamic acid hydroxycoumarin hydroxydeoxyguanosine hydroxyecdysone hydroxyeicosatetraenoic acid hydroxyethyl methacrylate hydroxyethylcellulose

hydroxyitraconazole hydroxyleucine hydroxylysine hydroxymethylcytosine hydroxymethylfurfural hydroxynaphthoquinone hydroxypiperidine hydroxyquinol hydroxyquinoline hydroxyspheriodenone hydroxystaurosporine hydroxystearic acid hydroxysuccinimide hydroxytestosterone hydroxytoluene hydroxytryptamine hydroxytryptophan hydroxyurea hygrine hypoglycin hypotaurine hypoxanthin hypoxanthine hypusine ichthulin ilicic acid ilicin imesatin imidamine imidazole imidazolidine imidazolidinone imidazoline