(organic chemistry) A phenolic carboxylic acid, 2,4-dihydroxy-6-methylbenzoic acid, found in some lichens

(organic chemistry) A pyrone derivative used as a fungicide, bactericide, and preservative.

Pyruvic acid.

(organic chemistry) A synthetic bile acid, manufactured by the oxidation of cholic acid, that acts as a hydrocholeretic

(organic chemistry) An analogue of acetic acid in which two of the three hydrogen atoms of the methyl group are replaced by chlorine.

(organic chemistry) A cyclic fatty acid, 2-cyclopentene-1-tridecanoic acid, obtained from chaulmoogra seeds, used in the treatment of leprosy.

A bacteriostatic antibiotic that is often used topically in creams and eyedrops but may also be given systemically as tablets or injections.

(pharmacology) A crystalline antibiotic C₁₇H₂₀O₆ obtained from fungi of the genus Penicillium, used as an immunosuppressant drug to prevent rejection in organ transplants.

(pharmacology) A bisphosphonate C₄H₁₃NO₇P₂ used to inhibit bone resorption especially in the treatment of osteoporosis in postmenopausal women and Paget's disease of bone. Trade names include Fosamax and possibly others.

a natural acid, found in the plant genus Spiraea (spirea)