国产精品欧美一区二区三区不卡,久久综合av免费观看,大香伊蕉在人线国产av老女人,久久久久成人精品无码中文字幕,九九精品99久久久香蕉,国产在线无码精品无码,亚洲av永久无码精品网址,亚洲av中文无码乱人伦在线播放,国产精品情侣呻吟对白视频,国产亚洲欧美精品永久

[Product name]:

3',4'-Dihydroxypropiophenone

[Structural Formula]:

[Molecular Formula]:

C₉H₁₀O₃

[Molecular Weight]:

166.17

[CAS NO]:

7451-98-1

Properties

Appearance

White crystal powder

Melting range ℃

145.0-146.0

Quality Specifications

Purity%

≥97.0

Moisture %

  ≤0.5