Organic chemistry<unk>  undergoes the typical chemical reactions of a carboxylic acid. Upon treatment with a standard base, it converts to metal acetate and water. With strong bases (e.g., organolithium reagents), it can be doubly deprotonated to give LiCH2CO2Li. Reduction of<unk>  gives ethanol. The OH group is the main site of reaction, as illustrated by the conversion of<unk>  to acetyl chloride. Other substitution derivatives include<unk>  anhydride; this anhydride is produced by loss of water from two molecules of<unk> . Esters of<unk>  can likewise be formed via Fischer esterification, and amides can be formed. When heated above ,<unk>  decomposes to produce carbon dioxide and methane, or to produce ketene and water: :CH3COOH → CH4 + CO2 :CH3COOH → CH2CO + H2O Reactions with inorganic compounds<unk>  is mildly corrosive to metals including iron, magnesium, and zinc, forming hydrogen gas and salts called acetates: : Mg + 2 CH3COOH → (CH3COO)2Mg + H2 Because aluminium forms a passivating acid-resistant film of aluminium oxide, aluminium tanks are used to transport<unk> . Metal acetates can also be prepared from<unk>  and an appropriate base, as in the popular "baking soda + vinegar" reaction: : NaHCO3 + CH3COOH → NaCH3COO + CO2 + H2O A colour reaction for salts of<unk>  is iron(III) chloride solution, which results in a deeply red colour that disappears after acidification. A more sensitive test uses lanthanum nitrate with iodine and ammonia to give a blue solution. Acetates when heated with arsenic trioxide form cacodyl oxide, which can be detected by its malodorous vapours. Other derivatives Organic or inorganic salts are produced from<unk> . Some commercially significant derivatives: *Sodium acetate, used in the textile industry and as a food preservative (E262). *Copper(II) acetate, used as a pigment and a fungicide. *Aluminium acetate and iron(II) acetate—used as mordants for dyes. *Palladium(II) acetate, used as a catalyst for organic coupling reactions such as the Heck reaction. Halogenated<unk> s are produced from<unk> . Some commercially significant derivatives: *Chloroacetic acid (monochloroacetic acid, MCA), dichloroacetic acid (considered a by-product), and trichloroacetic acid. MCA is used in the manufacture of indigo dye. *Bromoacetic acid, which is esterified to produce the reagent ethyl bromoacetate. *Trifluoroacetic acid, which is a common reagent in organic synthesis. Amounts of<unk>  used in these other applications together account for another 5–10% of<unk>  use worldwide.
Acetic acid
Cefazolin
Cephalosporin
Nalidixic acid
Carbenicillin
Extended-spectrum penicillin
Resistin
Ciprofloxacin