The present invention provides a highly ordered, crystallized organic thin film superior in electroconductive properties that is resistant to exfoliation, a compound for preparation of the thin film, and a method of producing the same.An organic silane compound, characterized in that a molecule represented by General Formula (I) is substituted with a silyl group.A method of producing the organic silane compound, comprising halogenating a molecule (I) and allowing it to react with a silane derivative.An organic thin film, wherein the organic silane compound molecule is oriented with its silyl group located in the substrate side and the molecule (I) region in the film surface side. (wherein, x1 and x2 are integers satisfying 1≦x1, 1≦x2, and 2≦x1+x2≦8; each of y1 and z1 is independently an integer of 2 to 8; each of y2 and z2 is independently an integer of 0 to 8; and the skeleton may be substituted with a hydrophobic group).