Nonanols

1-Nonanol is a straight chain fatty alcohol with nine carbon atoms and the molecular formula CH3(CH2)8OH. It is a colorless oily liquid with a citrus odor similar to citronella oil.

2-Nonanol is a simple alcohol. It has the odor of cucumber, and has been identified in oysters. It is used by several insects as pheromones. It is commercially available.

3-Methyl-3-octanol (systematically named 3-methyloctan-3-ol) is an organic compound with the chemical formula CH3(CH2)4C(CH3)(CH2CH3)OH (also written as ). This simple tertiary alcohol is a clear colourless liquid under standard conditions, and is tasteless.

Nonanol is a type of simple alcohol. Its isomers include:

3,5,5-Trimethyl-1-hexanol is a nine carbon primary alcohol, and it makes up the mixture isononanol along with isononyl alcohol. It is used for fragrance in many toiletries and household cleaning products. Between one and ten metric tonnes are produced every year for use as a fragrance.