2031-79-0

• 常用中文名：六乙基环三硅氧烷
• 常用英文名：2,2,4,4,6,6-Hexaethyl-1,3,5,2,4,6-trioxatrisilinane
• CAS号：2031-79-0
• 分子式：C₁₂H₃₀O₃Si₃
• 分子量：306.621
• 相关类别： 有机原料 烃类化合物及其衍生物 环烃
• 发布时间：2018-07-17 14:46:51
• 更新时间：2025-08-22 23:15:42

名称

• 中文名: 六乙基环三硅氧烷
• 英文名: 2,2,4,4,6,6-hexaethyl-1,3,5,2,4,6-trioxatrisilinane
• 中文别名: 乙基D3,D4,D5; 乙基D3; 乙基硅氧烷环体
• 英文别名: hexaethylcyclotriasiloxane; hexaethyl-cyclotrisiloxane; Hexaaethyl-cyclotrisiloxan; diethylsiloxane trimer; 2,2,4,4,6,6-Hexaethyl-1,3,5,2,4,6-trioxatrisilinane; Cyclotrisiloxane, 2,2,4,4,6,6-hexaethyl-; hexaethyltrisiloxane; EINECS 217-984-4; Cyclotrisiloxane,hexaethyl; MFCD00053566; 1,1,3,3,5,5-hexaethylcyclotrisiloxane

物化性质

• 密度: 0.9±0.1 g/cm3
• 沸点: 252.1±8.0 °C at 760 mmHg
• 熔点: 14ºC
• 分子式: C₁₂H₃₀O₃Si₃
• 分子量: 306.621
• 闪点: 94.3±18.8 °C
• 精确质量: 306.150269
• PSA: 27.69000
• LogP: 4.49580
• 外观性状: 透明液体
• 蒸汽压: 0.0±0.5 mmHg at 25°C
• 折射率: 1.435
• 计算化学:

  1.疏水参数计算参考值（XlogP）:无

  2.氢键供体数量:0

  3.氢键受体数量:3

  4.可旋转化学键数量:6

  5.互变异构体数量:无

  6.拓扑分子极性表面积:27.7

  7.重原子数量:18

  8.表面电荷:0

  9.复杂度:201

  10.同位素原子数量:0

  11.确定原子立构中心数量:0

  12.不确定原子立构中心数量:0

  13.确定化学键立构中心数量:0

  14.不确定化学键立构中心数量:0

  15.共价键单元数量:1

毒性和生态

CHEMICAL IDENTIFICATION RTECS NUMBER : GZ4813000 CHEMICAL NAME : Cyclotrisiloxane, hexaethyl- CAS REGISTRY NUMBER : 2031-79-0 BEILSTEIN REFERENCE NO. : 1786263 LAST UPDATED : 199701 DATA ITEMS CITED : 5 MOLECULAR FORMULA : C12-H30-O3-Si3 HEALTH HAZARD DATA ACUTE TOXICITY DATA TYPE OF TEST : LD - Lethal dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : >20 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 51(8),91,1986 TYPE OF TEST : LD - Lethal dose ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - rat DOSE/DURATION : >10 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 51(8),91,1986 TYPE OF TEST : LD - Lethal dose ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : >20 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 51(8),91,1986 TYPE OF TEST : LD - Lethal dose ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : >10 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 51(8),91,1986

安全

• 风险声明 (欧洲): R36/37/38
• 安全声明 (欧洲): 26-36/37/39

合成路线

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