ChEBI: 1,9-decanediol is a diol that is decane substituted by hydroxy groups at position 1 and 9. It is a natural product found in rice root exudates and acts as an effective biological nitrification inhibitor for soil ammonia-oxidizing bacteria and archaea. It has a role as a nitrification inhibitor and a plant metabolite. It is a primary alcohol, a diol, an aliphatic alcohol and a secondary alcohol.