Nippon Soda Co., Ltd.

Kento Iwata

Takao Iwasa

Kotaro Shibayama

Riho Taguchi

Hiroto Suzuki

A compound represented by a formula (I) or a formula (II): (in the formulas (I) and (II), A represents an oxygen atom or a sulfur atom, Xrepresents a halogeno group or the like, m represents the number of Xgroups and is any integer of 0 to 5, Z represents a group represented by a formula (Z-1) or a formula (Z-2), a bond marked with a symbol * means a bond with a carbonyl group or a thiocarbonyl group in a pyridinium salt, Y represents a substituted or unsubstituted Calkenylene group, Q represents a naphthalene ring or a 6- to 10-membered heteroaryl ring, Xrepresents a substituted or unsubstituted Calkyl group or the like, Xrepresents a halogeno group or the like, n represents the number of Xgroups and is any integer of 0 to 4, Zrepresents a counter ion, and q represents a valence of the counter ion and is 1 or 2.)

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Odawara-shi, Japan

Kento Iwata