Having photochromic properties, it has been substituted with an aryl amine group benzo -, naphtho - and phenanthridine potter's wheel Men

摘要

This invention, the new benzo chemical formula (i), regards the chemical compound of nahuto or huenantorokuromentaipu. These chemical compound (i) have interesting huotokuromitsuku quality. This invention as those manufacturing and a photo chrome regards also those uses and the composition which contains those.