发明授权
US5328994A Azinoneutromethines 失效
氨基丁内酯

Azinoneutromethines
摘要:
New azinoneutromethines of the formula ##STR1## in which the symbols used have the meaning given in the description, a process for their preparation and their use in thermal and photochromic recording materials, as nonlinear optical materials, as photoconductors in electrophotography and for dyeing fibres and woven fabrics of polyester and plastics.
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