AZO BENZOIC

ACID, n. A?z-0-be?n-zo'i?k. Fr., acide azobenzoïque. Ger., Azobenzoësäure. A dibasic acid, C,H,0N304 = C,H,(CO.0H) — N =N — C,H,(CO:OH), formed by the reduction of azoxybenzoic acid. Three isomeric varieties, ortho a’ a., meta a' a., and para a’ a., are known, corresponding to the three varieties of azoxybenzoic acid, [B, 4.]