In organic chemistry, a pyrrole is a five membered aromatic ring, 4 elements of which are carbonatoms, one element of which is a nitrogen atom. The molecular formula for a pyrrole is C4NH5. The structure is:
... of Faith[?], Westminster Shorter Catechism[?], Westminster Larger Catechism[?], Theological Declaration of Barmen[?], Confession of 1967[?], and A Brief Statement of ...