Octamethyltrisiloxane

CAS 107-51-7C8H24O2Si3MW 236.53

Octamethyltrisiloxane（CAS 107-51-7）：分子式 C8H24O2Si3、分子量 236.53；类别有机化学品。

规格参数

CAS号107-51-7

分子式C8H24O2Si3

分子量236.53

应用领域Uses: Used as a base for extreme temperature silicone oils、fluids and as a foam suppressant in petroleum lubricating oils、[Merck Index] Used mainly to make polydimethylsiloxane (PDMS) polymers、oligomers、and mixtures、Also used to make basic chemicals、paints、coatings、adhesives、soaps、cleaning compounds、toiletries、plastics、semiconductors、and other electronic components、and in building construction、lubricants、diluents、solvents、and cosmetics、[Government of Canada - Chemicals Management Plan]、Semiconductor Manufacturing [Category: Industry]、Use Classification: Cosmetics -> Skin conditioning、Industry Uses: Intermediate、Diluent、Heat transferring agent、Other、Consumer Uses: Diluent、Household Products: Cosmetics product ingredient: Trisiloxane、octamethyl- (Octamethyltrisiloxane、Trisiloxane)、Reason for Listing: Listed as Persistent、Bioaccumulative、and Inherently Toxic to the environment by the Canadian Environmental Protection Act Environmental Registry Domestic Substances List.、Potential Health Impacts: Bioaccumulation、Environmental Persistence、and Undefined Toxicity、Product count: 124、U.S. Production: 2023: 1、000、000 - <5、000 lb、2022: 1、2021: 1、2020: 1、General Manufacturing Information: Other (requires additional information)、All Other Chemical Product and Preparation Manufacturing、Electrical Equipment、Appliance、and Component Manufacturing、All Other Basic Inorganic Chemical Manufacturing、Trisiloxane、1、3、5、5-octamethyl-: ACTIVE

类别Organic Chemicals

用途与场景

登记用途：Uses: Used as a base for extreme temperature silicone oils、fluids and as a foam suppressant in petroleum lubricating oils、[Merck Index] Used mainly to make polydimethylsiloxane (PDMS) polymers、oligomers、and mixtures、Also used to make basic chemicals、paints、coatings、adhesives、soaps、cleaning compounds、toiletries、plastics、semiconductors、and other electronic components、and in building construction、lubricants、diluents、solvents、and cosmetics、[Government of Canada - Chemicals Management Plan]、Semiconductor Manufacturing [Category: Industry]、Use Classification: Cosmetics -> Skin conditioning、Industry Uses: Intermediate、Diluent、Heat transferring agent、Other、Consumer Uses: Diluent、Household Products: Cosmetics product ingredient: Trisiloxane、octamethyl- (Octamethyltrisiloxane、Trisiloxane)、Reason for Listing: Listed as Persistent、Bioaccumulative、and Inherently Toxic to the environment by the Canadian Environmental Protection Act Environmental Registry Domestic Substances List.、Potential Health Impacts: Bioaccumulation、Environmental Persistence、and Undefined Toxicity、Product count: 124、U.S. Production: 2023: 1、000、000 - <5、000 lb、2022: 1、2021: 1、2020: 1、General Manufacturing Information: Other (requires additional information)、All Other Chemical Product and Preparation Manufacturing、Electrical Equipment、Appliance、and Component Manufacturing、All Other Basic Inorganic Chemical Manufacturing、Trisiloxane、1、3、5、5-octamethyl-: ACTIVE。

采购档案

这个产品是什么

Octamethyltrisiloxane 是一种以碳骨架为基础的有机化合物，登记 CAS 号为 107-51-7，分子式 C8H24O2Si3（分子量 236.53），归属于有机化学品大类化工原料。

识别信息

登记 CAS 号：107-51-7

其分子式 C8H24O2Si3 由 8 个碳、24 个氢、2 个氧、3 个硅组成。

别名/同义词：Octamethyltrisiloxane · Dimethylpolysiloxane

所属分类：有机化学品

常见问题

Octamethyltrisiloxane 的 CAS 号是多少？

Octamethyltrisiloxane 的 CAS 登记号为 107-51-7。

Octamethyltrisiloxane 的分子式与分子量是多少？

分子式 C8H24O2Si3，分子量 236.53。

Octamethyltrisiloxane 还有哪些别名？

别名/同义词：Octamethyltrisiloxane、Dimethylpolysiloxane。

Octamethyltrisiloxane 的登记用途是什么？

登记用途：Uses: Used as a base for extreme temperature silicone oils、fluids and as a foam suppressant in petroleum lubricating oils、[Merck Index] Used mainly to make polydimethylsiloxane (PDMS) polymers、oligomers、and mixtures、Also used to make basic chemicals、paints、coatings、adhesives、soaps、cleaning compounds、toiletries、plastics、semiconductors、and other electronic components、and in building construction、lubricants、diluents、solvents、and cosmetics、[Government of Canada - Chemicals Management Plan]、Semiconductor Manufacturing [Category: Industry]、Use Classification: Cosmetics -> Skin conditioning、Industry Uses: Intermediate、Diluent、Heat transferring agent、Other、Consumer Uses: Diluent、Household Products: Cosmetics product ingredient: Trisiloxane、octamethyl- (Octamethyltrisiloxane、Trisiloxane)、Reason for Listing: Listed as Persistent、Bioaccumulative、and Inherently Toxic to the environment by the Canadian Environmental Protection Act Environmental Registry Domestic Substances List.、Potential Health Impacts: Bioaccumulation、Environmental Persistence、and Undefined Toxicity、Product count: 124、U.S. Production: 2023: 1、000、000 - <5、000 lb、2022: 1、2021: 1、2020: 1、General Manufacturing Information: Other (requires additional information)、All Other Chemical Product and Preparation Manufacturing、Electrical Equipment、Appliance、and Component Manufacturing、All Other Basic Inorganic Chemical Manufacturing、Trisiloxane、1、3、5、5-octamethyl-: ACTIVE。

Octamethyltrisiloxane 属于哪个分类？

所属分类：Organic Chemicals。

PubChem 公开数据

Octamethyltrisiloxane（CAS 107-51-7）的公开数据库记录，列此仅供独立核对。

危险化学品分类与危害说明

GHS notification summary	11.1% (49 / 443)
Reported hazard statements	H226 (88.9%), H413 (27.1%)

This chemical does not meet GHS hazard criteria for 11.1% (49 of 443) of reports.

H226 (88.9%): Flammable liquid and vapor [Warning Flammable liquids]

法规与备案状态

Regulatory & Food Contact	CIR / INCI: Skin conditioning
GHS notification summary	11.1% (49 / 443)

物理形态与操作说明

Liquid
Liquid; [Merck Index] Colorless odorless liquid; [Acros Organics MSDS]

公开数据库收录的理化数据

蒸气压	3.34 [mmHg]

这个物质在各数据库里的编号

CAS Registry Number	107-51-7
PubChem CID	24705
分子式	C8H24O2Si3
IUPAC 名称	dimethyl-bis(trimethylsilyloxy)silane
UNII（FDA）	9G1ZW13R0G

数据库记载的用途

Used as a base for extreme temperature silicone oils/fluids and as a foam suppressant in petroleum lubricating oils; [Merck Index] Used mainly to make polydimethylsiloxane (PDMS) polymers, oligomers, and mixtures; Also used to make basic chemicals, paints, coatings, adhesives, soaps, cleaning compounds, toiletries, plastics, semiconductors, and other electronic components, and in building construction, lubricants, diluents, solvents, and cosmetics; [Government of Canada - Chemicals Management Plan]
Semiconductor Manufacturing [Category: Industry]
Cosmetics product ingredient: Trisiloxane, octamethyl- (Octamethyltrisiloxane; Trisiloxane)
Reason for Listing: Listed as Persistent, Bioaccumulative, and Inherently Toxic to the environment by the Canadian Environmental Protection Act Environmental Registry Domestic Substances List.
Potential Health Impacts: Bioaccumulation, Environmental Persistence, and Undefined Toxicity
2023: 1,000,000 - <5,000,000 lb

它在各数据库里的别名

OCTAMETHYLTRISILOXANE; 107-51-7; Trisiloxane, octamethyl-; 1,1,1,3,3,5,5,5-Octamethyltrisiloxane; dimethyl-bis(trimethylsilyloxy)silane; Pentamethyl(trimethylsilyloxy)disiloxane; DTXSID9040710; Dimethylbis(trimethylsiloxy)silane; 9G1ZW13R0G; Pentamethyl(trimethylsiloxy)disiloxane; CHEBI:9147; DTXCID7020710; RefChem:1093790; 203-497-4; Dimethicone 350; Simethicone Impurity 6

计算机算出的分子描述符

分子量	236.53
氢键供体数	0
氢键受体数	2
可旋转键数	4
精确质量	236.10840961
单同位素质量	236.10840961
拓扑极性表面积	18.5
重原子数	13
形式电荷	0
复杂度	149

数据库摘要

Octamethyltrisiloxane · CAS 107-51-7 · C8H24O2Si3. UNII 9G1ZW13R0G. 蒸气压: 3.34 [mmHg].

数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。