On April 18, 2019, Valenti, Dominick J.; Dey, Sanjeev K.; Qin, Haihu; Freund, Wesley A.; Miracle, Gregory S. published a patent.Name: 4-(4-Acetylpiperazin-1-yl)benzaldehyde The title of the patent was Leuco compounds for cleaning composition. And the patent contained the following:
Title compound comprises ≥1 of fluorescent moiety covalently bound to ≥1 of second moiety containing leuco moieties and chromophore moieties. Thus, a compound was prepared from a leuco moiety (synthesized from N-acetylpiperazine, 4-fluorobenzaldehyde, and diethanolaniline), and a fluorescent moiety of benzenesulfonic acid-derived sodium salt. The experimental process involved the reaction of 4-(4-Acetylpiperazin-1-yl)benzaldehyde(cas: 890092-19-0).Name: 4-(4-Acetylpiperazin-1-yl)benzaldehyde
The Article related to leuco compound cleaning composition, Dyes, Organic Pigments, Fluorescent Brighteners, and Photographic Sensitizers: Fluorescent Brighteners and other aspects.Name: 4-(4-Acetylpiperazin-1-yl)benzaldehyde
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics