氨

ammonia

surname An

(bound form) calm; peaceful / to calm; to set at ease / safe; secure; in good health / content; satisfied (as in 安於|安于[an1 yu2]) / to place (sb) in a suitable position (job) / to install; to fix; to fit / to bring (a charge against sb) / to harbor (certain intentions) / ampere (abbr. for 安培[an1 pei2])

gas / air / smell / weather / to make angry / to annoy / to get angry / vital energy / qi

gas; air / smell / weather / to make angry; to annoy; to get angry / vital energy; qi

alanine (Ala), an amino acid

ethylamino group

leucine (Leu), an essential amino acid

cysteine (Cys), an amino acid / mercaptoethyl amine

aspartic acid (Asp), an amino acid

paracetamol / acetaminophen

p-aminopropiophenone

albuterol (also known as proventil, salbutamol, ventolin), an asthma drug

aminoacridine or aminacrine (antiseptic and disinfectant)

isoleucine (Ile), an essential amino acid

serine (Ser), an amino acid