又大又粗又爽的少妇免费视频,伊人伊成久久人综合 成人,高清日韩精品一在线观看视频,在线看h

<dd id="e1mvt"><strike id="e1mvt"></strike></dd>

<button id="e1mvt"><xmp id="e1mvt"><strike id="e1mvt"></strike>

<button id="e1mvt"></button>

<button id="e1mvt"></button>

利群化工

liqun chemical

PRODUCTS

liqun chemical

4,6-Dihydroxypyrimidine

Product name 4,6-Dihydroxypyrimidine
CAS NO. 1193-24-4
EINECS No. 214-772-3
Molecular formula C4H4N2O2
Molecular weight 112.0868
Structural formula
Physical and chemical properties Appearance: light yellow crystal
Melting point:>300 ° C (lit.)
Boiling point: 358.5 º C at 760 mmHg
Water solubility: 2.5 g/L (20 º C)
Use It is used as an intermediate in organic synthesis, and is used in the pharmaceutical industry to produce sulfamoxin. 4,6-dihydroxypyrimidine is also an intermediate of vitamin B4, antitumor drugs and adjuvant drugs.

HOME  |   ABOUT US  |   PRODUCTS  |   CULTURE  |   NEWS  |   FACTORY  |   CONTACT  |   中文版

Copyright(C)2022, Xuzhou Liqun Chemical Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice 備案序號:蘇ICP備14033556號