English AGROVOC

RT Alkaloids
RT Amidines
RT Amino acids
RT Amino compounds
RT Azides
RT Azines
RT Azoles
RT Benzimidazoles
RT Carbamates
RT Chloridazon
RT Chlormequat
RT Guanidines
RT Hydrazides
RT Hydroxamic acids
RT Imidazoles
RT Indoles
RT Nitroso compounds
RT Norflurazon
RT Organic compounds
RT Oximes
RT Peptides
RT Phenothiazines
RT Porphyrins
RT Purines
RT Pyridines
RT Pyrimidines
RT Quaternary ammonium compounds
RT Quinolines
RT Sulphonylureas
RT Thiazoles
RT Triazines
RT Urea
(Lao)
   ທາດປະສົມ ອໍຣ໌ການິກ ໄນໂຕຣເຈນ
(French)
   Composé organoazoté
(Spanish)
   Compuesto orgánico del nitrógeno