Ultraviolet absorbent, photostabilizer, ultraviolet ray-absorbing composition, photostabilized composition and external prepraration for skin
申请人:Shiseido Co., Ltd.
公开号:US20030198608A1
公开(公告)日:2003-10-23
Providing an ultraviolet absorbent or photostabilizer with excellent absorption over a wide ultraviolet wavelength range and great stability and a high safety profile, as well as an ultraviolet-absorbing composition, a photostabilized composition and an external preparation for skin, where the pyridazine derivative of the following general formula and/or a salt thereof is included as the effective component of the ultraviolet absorbent or photostabilizer, or is included in the ultraviolet-absorbing composition, the photostabilized composition and the external preparation for skin:
1
Wherein R
1
, R
2
, R
3
and R
4
are not simultaneously hydrogen atom; and R
2
and R
3
are not simultaneously morpholino group.
提供一种具有广泛紫外波长范围内出色吸收和稳定性以及高安全性的紫外线吸收剂或光稳定剂,以及一种紫外线吸收组合物、光稳定组合物和外用皮肤制剂。其中,下列一般式的吡啶嗪衍生物和/或其盐作为紫外线吸收剂或光稳定剂的有效成分,或包含在紫外线吸收组合物、光稳定组合物和外用皮肤制剂中:1其中,R1、R2、R3和R4不同时为氢原子;且R2和R3不同时为吗啡啶基团。