phloroglucinol

noun

phlor·​o·​glu·​cin·​ol -ˈglüs-ᵊn-ˌȯl, -ˌōl 

: a sweet crystalline phenol C₆H₆O₃ that occurs in combined form in glycosides (as phlorizin), in resins, and in tannins and that is usually made from trinitrotoluene by a series of steps