AbstractAn analysis by counter‐current distribution of the substance of m.p. ∼ 140° C, described as 3‐chloro‐nitrosophenol byHodgson1) and described as 3‐chloro‐quinone monoxime by other authors4)5)2) gave support to the opinion already expressed2) that this substance has a complex nature. The main component found in the solution of the substance was identical with 3‐chloro‐quinone mono