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a basic, cyclic substance, obtained by destructive distillation of various animal substances.
Divinylenimine; a heterocyclic compound found in many biologically important substances, for example, heme.
1. a toxic, basic, heterocyclic compound; obtained by destructive distillation of various animal substances and used in the manufacture of pharmaceuticals. Pyrrole.
2. a substituted derivative of this structure.
1. A five-membered heterocyclic ring compound, C4H5N, having an odor similar to chloroform, that is the parent compound of protoporphyrin.
2. Any of various derivatives of this compound.
pyr·ro′lic (pĭ-rō′lĭk) adj.
Etymology: Gk, pyrrhos, red
a five-membered heterocyclic aromatic substance occurring naturally in many compounds in the body. Heme and porphyrin are pyrrole derivatives.
pyrrolea porphyrin building block that has a five-membered heterocyclic structure and contains nitrogen.
a basic, cyclic substance, obtained by destructive distillation of various animal substances. Critical components in the synthesis of porphyrins.