亚洲精品视频观看丨女人扒开屁股桶爽30分钟丨日韩精品无码专区免费视频丨四虎成人精品永久在线视频丨亚洲中文字幕码在线电影丨婷婷色婷婷开心五月四房播播久久丨尤物九九久久国产精品的特点丨伊人99re丨天天曰天天射丨深夜激情视频丨天干天干夜天干天天爽丨成人tiktok黄短视频丨91视频一区二区三区丨美女大黄网站丨亚洲一本之道丨香港三日三级少妇三级99丨丁香婷婷六月天丨九九九在线视频丨色肉色伦交国产69精品丨婷婷色爱区综合五月激情韩国丨久久综合导航丨亚洲成av人片无码bt种子下载丨久久久久高潮毛片免费全部播放丨成人黄色av丨99re热免费精品视频观看

[Alias]:

2-methyl-3-oxo-butanoicaciethylester

[Product name]:

Ethyl 2-methylacetoacetate

[Structural formula]:

[Molecular formula]:

C₇H₁₂O₃

[Molecular weight]:

144.17

[CAS NO]:

609-14-3

[Packing]:

25kg Fluorinated barrel

Physicochemical data

Appearance

Colorless transparent liquid

Boiling range °C/mmHg

187

Flash point ºF

145

Density 25°C

1.019

Refractive index n20/D

1.418

Quality standard

Purity %HPLC

≥98.0

Moisture%

≤0.5