| abstract |
The present invention relates to a compound for anisotropic film represented by the following formula (1) in the form of free acid, which is useful for anisotropic films such as polarizing films and has high dichroism in the short wavelength region (380 nm-500 nm) and excellent durability. (L1 is -(CH=CH)r- or -(C ≡ C)s -. R and s are an integer of 1-5. Ar1 is a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, or a substituted or unsubstituted heterocyclic group. M is an integer of 0-3. p and k are 0 or 1. p and k are not 0 at the same time. X1 is a hydrogen atom or an organic group. X2 is a hydrogen atom, a nitro group, a substituted or unsubstituted amino group, or a group represented by the following formula (1-a). When X2 is a hydrogen atom, a nitro group, or a substituted or unsubstituted amino group, m is not 0). |