Microarray

Patent Pending Disclosed are: a microarray having an organic molecule immobilized thereon, which enables the organic molecule to be immobilized on a solid substrate in various orientations, which enables to detect a complicated interaction between the organic molecule and an active substance, and has no restriction in orientation and therefore can analyze on structure-activity relationships, and can be produced in a simple manner and at low cost; a method for producing the microarray; and a method for detecting the interaction between an active substance and the organic molecule using the microarray.