Disclosed is a method of proving the authenticity of goods or a support comprising using a compound represented by Formula (I).
wherein, in Formula (I), each of R
11
to R
46
independently represents a hydrogen atom or a substituent group, wherein when a benzene ring is substituted with any of R
11
to R
46
, any groups adjacent to each other among R
11
to R
46
may be bonded each other to form a ring; M represents a hydrogen atom, a metal ion, or a group containing a metal ion; and n represents 1 or 2. The infrared absorption efficiency is high and the deterioration in infrared absorption over time is ameliorated. The infrared absorption efficiency is high and the deterioration in infrared absorption over time is ameliorated.
公开了一种证明商品真实性或使用包含以式(I)表示的化合物的支持的方法。在式(I)中,R11到R46中的每一个独立地表示氢原子或取代基团,其中当苯环用任何R11到R46中的任何基团取代时,R11到R46中相邻的任何基团可以彼此键合以形成环;M表示氢原子、
金属离子或含
金属离子的基团;n表示1或2。红外吸收效率高,随时间的推移,红外吸收的恶化得到改善。