• 

  2,5-Diketopiperazine

• 

  Sodium allylsulfonate

• 

  2-methylpropionitrile

• 

  Tosyl chloride

• 

  5-Chloro-1-indanone

• 

  Sodium thiomethoxide

• 

  Dithiocyanomethane

• 

  Methyltriphenylphosphonium bromide

• 

  (Methoxymethyl)triphenylphodphonium Chloride

• 

  Sulfamic acid