| 摘要 |
Provided is a resin composition that has a maximum fluorescent wavelength of at least 650 nm and contains a resin and a near-infrared fluorescent pigment comprising at least one compound selected from the group consisting of compounds represented by general formulas (I1), (I2). (In the formulas, Rh and Ri, as well as Rj and Rk, form an aromatic 5-membered ring, an aromatic 6-membered ring, or a condensed aromatic ring together with the nitrogen atoms to which Rh, Ri, Rj, and Rk are bonded; each of Rl, Rm, Rn, and Ro independently represents a halogen atom, a C1-20 alkyl group, a C1-20 alkoxy group, an aryl group, or a heteroaryl group; Rr and Rs represent a hydrogen atom or an electron-withdrawing group; and each of Rp and Rq independently represents a hydrogen atom, a halogen atom, a C1-20 alkyl group, a C1-20 alkoxy group, an aryl group, or a heteroaryl group.) |
