免费观看俩人交性视频,噼里啪啦国语在线观看高清资源,久久精品192.168.0.1,国精品无码一区二区三区左线

[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