免费女人高潮流视频在线观看,国产FREEXXXX性播放麻豆,亚洲AV成人无码精品网站老司机,日韩插啊免费视频在线观看

中文版 English Korean

??:+86-573-82813639, 83621335
??:+86-573-82813637
???:? ? +86-13605839392
??:sales@jlightchem.com
???:http://www.xwjb.com.cn

????

 

[Alias]:

Oxydiacetic anhydride, 1,4-dioxine-2,6-dione

[Product name]:

Diglycolic anhydride

[Structural formula]:

[Molecular formula]:

C4H4O4

[Molecular weight]:

116.0722

[CAS NO]:

4480-83-5

[Packing]:

25kg/Cardboard drum

Physicochemical data

Appearance

light brown or off-white crystalline powder

Melting range °C

90-95 °C


Quality standard

Purity %HPLC

≥98

Moisture%

≤0.5

 

[ CLOSE ]
Copyright(C)2012, ??? ????? ?? All Rights Reserved. Supported by ChemNet ChinaChemNet Toocle