久久精品一区二区国产,一区二区三区在线播放,91热这里只有精品,91热这里只有精品,91激情视频在线,免费福利网站在线观看,电视剧团圆饭全45集正片

4-oxo-4H-chromene-3-carbaldehyde

[Product name]:

4-oxo-4H-chromene-3-carbaldehyde

[Structural Formula]:

[Molecular Formula]:

C10H6O3

[Molecular Weight]:

174.15

[CAS NO]:

17422-74-1

[Packing]:

Properties

Appearance

Colorless liquid

Boiling range ℃（760 mmHg）

Quality Specifications

Purity%

≥98.0

Moisture %

  ≤0.5