又硬又粗进去好疼A片麻豆,熟妇人妻久久中文字幕,国产精品久久久久av福利动漫,五十路熟妇亲子交尾

[Product name]:

(E)-4-(3,5-Dimethoxystyryl)phenol;

3,5-Dimethoxy-4'-hydroxy-trans-stilbene;

4'-hydroxy-3,5-dimethoxystilbene;

4'-Hydroxy-3,5-dimethoxy-trans-stilbene;

[Structural Formula]:

[Molecular Formula]:

C₁₆H₁₆O₃

[Molecular Weight]:

256.29600

[CAS NO]:

537-42-8

[Packing]:

Properties

Appearance

 Grey white crystalline powder

Melting range ℃

89-92ºC

Quality Specifications

Purity%

≥98.0

Moisture %

≤0.5