国产又粗又爽又大又长免费视,丁香五香天堂,日韩a一级欧美一级,日韩高清成人,午夜视频免费在线观看,十分钟观看视频高清在线www,奇米影视777在线观看

市場價:元價格:元

  • 中文名稱:八苯基環(huán)四硅氧烷
  • CAS RN:546-56-5
  • EINECS號:208-904-9
  • 分 子 式:C48H40O4Si4
  • 分 子 量:795.19
  • 分子式:
外觀與性狀:白色粉末
密度:1.185g/mL
熔點:196-198 °C(lit.)
沸點:334 °C
閃點:200 °C

折射率:1.66


海關(guān)編碼:2916399090
WGK Germany:1
安全說明:S22-S24/25
RTECS號:GZ4398500
? ? ? 用于醫(yī)藥中間體或其它高分子的合成等


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