pyrocatechol


py·ro·cat·e·chol

noun \ˌpī-rō-ˈkat-ə-ˌkl, -ˌkōl\

Definition of PYROCATECHOL

: a crystalline phenol C6H6O2 obtained by pyrolysis of various natural substances (as resins and lignins) but usually made synthetically and used especially as a photographic developer and in organic synthesis—called also catechol

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