text: * Acetals
  ** Hemiacetals
  ** Thioacetals
  ** Ketals
  * Alcohols and alkyl halides, diols, thiols
  * Alkanes and cycloalkanes
  * Alkenes
  * Alkynes
  * Amines
  * Amino acids, peptides, proteins
  * Aromatics
  ** Acetophenones
  ** Anilines
  ** Anisoles
  ** Benzene
  ** Benzenesulfonic acids
  **Benzophenones
  ** Nitrobenzenes
  ** Phenols
  * Aromatic hydrocarbons
  **Toluene
  **Xylenes
  ***m-Xylenes
  ***o-Xylenes
  ***p-Xylenes
  * Aryl halides
  * Carbohydrates
  ** Sugar
  * Carbonyl compounds
  **Acid anhydride
  ** Acyl halides
  *** Acyl chlorides
  ** Aldehydes
  ** Amides
  *** Lactams
  ** Carboxylic acids
  **Dicarbonyl
  **Enones
  **Esters
  *** Lactones
  **Imides
  **Ketones
  * Enols
  ** Enolate anions
  ** Enamines
  * Ethers
  ** Epoxides
  ** Sulfides
  * Imines
  ** Schiff bases
  * Ketenes
  * Lipids
  * Nitriles
  * Nucleic acids
  * Organometallic compounds
  * Oximes