环五硅氧烷（CAS 541-02-6）：分子式 C10H30O5Si5、分子量 370.77。
| CAS号 | 541-02-6 |
|---|---|
| 分子式 | C10H30O5Si5 |
| 分子量 | 370.77 |
| 熔点 | -38 °C |
| 沸点 | 210 °C |
| 应用领域 | Uses: CIR ingredient: Cyclopentasiloxane、Used as a carrier in personal care products、as a dry cleaning solvent、and to make siloxane polymers、[Merck Index]、Dry Cleaning [Category: Clean]、Intermediate in the manufacture of high molecular weight siloxane polymers. Carrier ingredient in personal care products、dry cleaning solvent.、Field of application: Fuel additives、surface treatment、cleaning、washing agents、fillers、impregnation material、adhesives、binding agents、paints、laquers and varnishes、reprographic agents、softeners、surface active agents、process regulators.、From table、Commonly used as volatile excipient in cosmetic products including antistatic、emollient、humectant、solvent、viscosity controlling and hair conditioning ... The main use of D5 in cosmetic products is in skin care products、deodorants、antiperspirants、hair care products and make up products.、Decamethylcyclopentasiloxane is used in cosmetics and toiletries.、It is used as a vehicle and end blocking agent in antiperspirants and in aerosol products containing insoluble powders.、Use Classification: Fragrance Ingredients、Cosmetics -> Solvent、Emollient、Hair conditioning、Industry Uses: Viscosity modifiers、Not Known or Reasonably Ascertainable、Diluent、Cleaning agent、Surface modifier、Terminator、Blocker、Intermediate、Lubricating agent、Solvent、Monomers、Consumer Uses: Solvent、Viscosity modifiers、Household Products: Cosmetics product ingredient: Decamethylcyclopentasiloxane (D5) (Cyclopentasiloxane)、Reason for Listing:、- Identified as Persistent、Bioaccumulative、and Inherently Toxic to the environment by the Canadian Environmental Protection Act Environmental Registry Domestic Substances List、- Priority Chemical identified under the California Environmental Contaminant Biomonitoring Program、- Included in the European Union candidate list of Substances of Very High Concern in accordance with Article 59 of Regulation (EC) 1907、2006 on the basis of Article 57(d)、Article 57(e)、or Article 57(f) for persistent、bioaccumulative and toxic、or very persistent and very bioaccumulative properties、Potential Health Impacts: Bioaccumulation、Carcinogenicity、Environmental Persistence、Hepatotoxicity and Digestive System Toxicity、Immunotoxicity、and Reproductive Toxicity、Product count: 924、Information on 740 consumer products that contain Cyclopentasiloxane in the following categories is provided:、• Auto Products、• Commercial、Institutional、• Home Maintenance、• Inside the Home、• Personal Care、Methods of Manufacturing: Isolated from the hydrolysis product of dimethyldichlorosilane.、Acid hydrolysis of dimethyldichlorosilane gives a hydrolysate mixture of linear and cyclic polysiloxanes with decamethylcyclopentasiloxane as one cyclic component.、Formulations、Preparations: The combination of D4、octamethylcyclotetrasiloxane、with decamethylcyclopentasiloxane (D5) is commonly referred to as cyclomethicone which has a wide range of applications as a formulation aid in personal care products.、U.S. Production: 2023: 100、000、000 - <250、000 lb、2022: 100、2021: 100、2020: 85、000 - <100、(1981) Silicone fluids、252 million lbs、silicone resins、17 million lbs、and silicone elastomers、106 million lbs.、(1986) >10 million-50 million pounds、(1990) >10 million-50 million pounds、(1994) >10 million-50 million pounds、For more U.S. Production (Complete) data for DECAMETHYLCYCLOPENTASILOXANE (8 total)、please visit the HSDB record page.、General Manufacturing Information: All Other Basic Inorganic Chemical Manufacturing、Plastics Product Manufacturing、Synthetic Rubber Manufacturing、Soap、Cleaning Compound、and Toilet Preparation Manufacturing、Paint and Coating Manufacturing、All Other Chemical Product and Preparation Manufacturing、Adhesive Manufacturing、Miscellaneous Manufacturing、All Other Basic Organic Chemical Manufacturing、Other (requires additional information)、Cyclopentasiloxane、2、4、6、8、10、10-decamethyl-: ACTIVE、Cyclomethicone is a generic name for several cyclic dimethyl polysiloxane compounds ... it refers not only to octamethylcyclotetrasiloxane (D4)、but also to cyclotrisiloxane (D3)、cyclopentasiloxane (D5)、cyclohexasiloxane (D6)、and cycloheptasiloxane (D7)、i.e. compounds of the general formula (CH3)2n-(O)n-(Si)n where n = 3-7. |
登记用途：Uses: CIR ingredient: Cyclopentasiloxane、Used as a carrier in personal care products、as a dry cleaning solvent、and to make siloxane polymers、[Merck Index]、Dry Cleaning [Category: Clean]、Intermediate in the manufacture of high molecular weight siloxane polymers. Carrier ingredient in personal care products、dry cleaning solvent.、Field of application: Fuel additives、surface treatment、cleaning、washing agents、fillers、impregnation material、adhesives、binding agents、paints、laquers and varnishes、reprographic agents、softeners、surface active agents、process regulators.、From table、Commonly used as volatile excipient in cosmetic products including antistatic、emollient、humectant、solvent、viscosity controlling and hair conditioning ... The main use of D5 in cosmetic products is in skin care products、deodorants、antiperspirants、hair care products and make up products.、Decamethylcyclopentasiloxane is used in cosmetics and toiletries.、It is used as a vehicle and end blocking agent in antiperspirants and in aerosol products containing insoluble powders.、Use Classification: Fragrance Ingredients、Cosmetics -> Solvent、Emollient、Hair conditioning、Industry Uses: Viscosity modifiers、Not Known or Reasonably Ascertainable、Diluent、Cleaning agent、Surface modifier、Terminator、Blocker、Intermediate、Lubricating agent、Solvent、Monomers、Consumer Uses: Solvent、Viscosity modifiers、Household Products: Cosmetics product ingredient: Decamethylcyclopentasiloxane (D5) (Cyclopentasiloxane)、Reason for Listing:、- Identified as Persistent、Bioaccumulative、and Inherently Toxic to the environment by the Canadian Environmental Protection Act Environmental Registry Domestic Substances List、- Priority Chemical identified under the California Environmental Contaminant Biomonitoring Program、- Included in the European Union candidate list of Substances of Very High Concern in accordance with Article 59 of Regulation (EC) 1907、2006 on the basis of Article 57(d)、Article 57(e)、or Article 57(f) for persistent、bioaccumulative and toxic、or very persistent and very bioaccumulative properties、Potential Health Impacts: Bioaccumulation、Carcinogenicity、Environmental Persistence、Hepatotoxicity and Digestive System Toxicity、Immunotoxicity、and Reproductive Toxicity、Product count: 924、Information on 740 consumer products that contain Cyclopentasiloxane in the following categories is provided:、• Auto Products、• Commercial、Institutional、• Home Maintenance、• Inside the Home、• Personal Care、Methods of Manufacturing: Isolated from the hydrolysis product of dimethyldichlorosilane.、Acid hydrolysis of dimethyldichlorosilane gives a hydrolysate mixture of linear and cyclic polysiloxanes with decamethylcyclopentasiloxane as one cyclic component.、Formulations、Preparations: The combination of D4、octamethylcyclotetrasiloxane、with decamethylcyclopentasiloxane (D5) is commonly referred to as cyclomethicone which has a wide range of applications as a formulation aid in personal care products.、U.S. Production: 2023: 100、000、000 - <250、000 lb、2022: 100、2021: 100、2020: 85、000 - <100、(1981) Silicone fluids、252 million lbs、silicone resins、17 million lbs、and silicone elastomers、106 million lbs.、(1986) >10 million-50 million pounds、(1990) >10 million-50 million pounds、(1994) >10 million-50 million pounds、For more U.S. Production (Complete) data for DECAMETHYLCYCLOPENTASILOXANE (8 total)、please visit the HSDB record page.、General Manufacturing Information: All Other Basic Inorganic Chemical Manufacturing、Plastics Product Manufacturing、Synthetic Rubber Manufacturing、Soap、Cleaning Compound、and Toilet Preparation Manufacturing、Paint and Coating Manufacturing、All Other Chemical Product and Preparation Manufacturing、Adhesive Manufacturing、Miscellaneous Manufacturing、All Other Basic Organic Chemical Manufacturing、Other (requires additional information)、Cyclopentasiloxane、2、4、6、8、10、10-decamethyl-: ACTIVE、Cyclomethicone is a generic name for several cyclic dimethyl polysiloxane compounds ... it refers not only to octamethylcyclotetrasiloxane (D4)、but also to cyclotrisiloxane (D3)、cyclopentasiloxane (D5)、cyclohexasiloxane (D6)、and cycloheptasiloxane (D7)、i.e. compounds of the general formula (CH3)2n-(O)n-(Si)n where n = 3-7.。
环五硅氧烷 是一种化工化合物，登记 CAS 号为 541-02-6，分子式 C10H30O5Si5（分子量 370.77）。
登记 CAS 号：541-02-6
其分子式 C10H30O5Si5 由 10 个碳、30 个氢、5 个氧、5 个硅 组成。
别名/同义词：环五硅氧烷 · Cyclopentasiloxane · CYCLOPENTASILOXANE/D5
环五硅氧烷 的 CAS 登记号为 541-02-6。
分子式 C10H30O5Si5，分子量 370.77。
别名/同义词：环五硅氧烷、Cyclopentasiloxane、CYCLOPENTASILOXANE/D5。
登记用途：Uses: CIR ingredient: Cyclopentasiloxane、Used as a carrier in personal care products、as a dry cleaning solvent、and to make siloxane polymers、[Merck Index]、Dry Cleaning [Category: Clean]、Intermediate in the manufacture of high molecular weight siloxane polymers. Carrier ingredient in personal care products、dry cleaning solvent.、Field of application: Fuel additives、surface treatment、cleaning、washing agents、fillers、impregnation material、adhesives、binding agents、paints、laquers and varnishes、reprographic agents、softeners、surface active agents、process regulators.、From table、Commonly used as volatile excipient in cosmetic products including antistatic、emollient、humectant、solvent、viscosity controlling and hair conditioning ... The main use of D5 in cosmetic products is in skin care products、deodorants、antiperspirants、hair care products and make up products.、Decamethylcyclopentasiloxane is used in cosmetics and toiletries.、It is used as a vehicle and end blocking agent in antiperspirants and in aerosol products containing insoluble powders.、Use Classification: Fragrance Ingredients、Cosmetics -> Solvent、Emollient、Hair conditioning、Industry Uses: Viscosity modifiers、Not Known or Reasonably Ascertainable、Diluent、Cleaning agent、Surface modifier、Terminator、Blocker、Intermediate、Lubricating agent、Solvent、Monomers、Consumer Uses: Solvent、Viscosity modifiers、Household Products: Cosmetics product ingredient: Decamethylcyclopentasiloxane (D5) (Cyclopentasiloxane)、Reason for Listing:、- Identified as Persistent、Bioaccumulative、and Inherently Toxic to the environment by the Canadian Environmental Protection Act Environmental Registry Domestic Substances List、- Priority Chemical identified under the California Environmental Contaminant Biomonitoring Program、- Included in the European Union candidate list of Substances of Very High Concern in accordance with Article 59 of Regulation (EC) 1907、2006 on the basis of Article 57(d)、Article 57(e)、or Article 57(f) for persistent、bioaccumulative and toxic、or very persistent and very bioaccumulative properties、Potential Health Impacts: Bioaccumulation、Carcinogenicity、Environmental Persistence、Hepatotoxicity and Digestive System Toxicity、Immunotoxicity、and Reproductive Toxicity、Product count: 924、Information on 740 consumer products that contain Cyclopentasiloxane in the following categories is provided:、• Auto Products、• Commercial、Institutional、• Home Maintenance、• Inside the Home、• Personal Care、Methods of Manufacturing: Isolated from the hydrolysis product of dimethyldichlorosilane.、Acid hydrolysis of dimethyldichlorosilane gives a hydrolysate mixture of linear and cyclic polysiloxanes with decamethylcyclopentasiloxane as one cyclic component.、Formulations、Preparations: The combination of D4、octamethylcyclotetrasiloxane、with decamethylcyclopentasiloxane (D5) is commonly referred to as cyclomethicone which has a wide range of applications as a formulation aid in personal care products.、U.S. Production: 2023: 100、000、000 - <250、000 lb、2022: 100、2021: 100、2020: 85、000 - <100、(1981) Silicone fluids、252 million lbs、silicone resins、17 million lbs、and silicone elastomers、106 million lbs.、(1986) >10 million-50 million pounds、(1990) >10 million-50 million pounds、(1994) >10 million-50 million pounds、For more U.S. Production (Complete) data for DECAMETHYLCYCLOPENTASILOXANE (8 total)、please visit the HSDB record page.、General Manufacturing Information: All Other Basic Inorganic Chemical Manufacturing、Plastics Product Manufacturing、Synthetic Rubber Manufacturing、Soap、Cleaning Compound、and Toilet Preparation Manufacturing、Paint and Coating Manufacturing、All Other Chemical Product and Preparation Manufacturing、Adhesive Manufacturing、Miscellaneous Manufacturing、All Other Basic Organic Chemical Manufacturing、Other (requires additional information)、Cyclopentasiloxane、2、4、6、8、10、10-decamethyl-: ACTIVE、Cyclomethicone is a generic name for several cyclic dimethyl polysiloxane compounds ... it refers not only to octamethylcyclotetrasiloxane (D4)、but also to cyclotrisiloxane (D3)、cyclopentasiloxane (D5)、cyclohexasiloxane (D6)、and cycloheptasiloxane (D7)、i.e. compounds of the general formula (CH3)2n-(O)n-(Si)n where n = 3-7.。
环五硅氧烷（CAS 541-02-6）的独立参考数据，整理自公开化学数据库。
| CAS Registry Number | 541-02-6 |
|---|---|
| PubChem CID | 10913 |
| Molecular formula | C10H30O5Si5 |
| IUPAC name | 2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane |
| UNII (FDA) | 0THT5PCI0R |
| Molecular Weight | 370.77 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 0 |
| Exact Mass | 370.09395673 |
| Monoisotopic Mass | 370.09395673 |
| Topological Polar Surface Area | 46.2 |
| Heavy Atom Count | 20 |
| Boiling Point | 210 °C |
|---|---|
| Melting Point | -38 °C |
| Flash Point | 73 °C (163 °F) - closed cup |
| Solubility | In water, 1.7X10-2 mg/L at 25 °C |
| Density | 0.9593 g/cu cm at 20 °C |
| Vapor Pressure | 0.2 [mmHg] |
| Viscosity | 3.9 cSt at 25 °C |
| Surface Tension | 18.5 dyne/cm at 25 °C |
DECAMETHYLCYCLOPENTASILOXANE; 541-02-6; Cyclomethicone 5; Dimethylsiloxane pentamer; Dow corning 345; Cyclic dimethylsiloxane pentamer; NUC silicone VS 7158; Silicon SF 1202; Ciclopentasiloxane; Cyclomethicone D5; Dekamethylcyklopentasiloxan; D5-sil; KF 995; DTXSID1027184; VS 7158; 0THT5PCI0R
| Regulatory & Food Contact | FDA Cumulative Estimated Daily Intake (CEDI): FCS DECAMETHYLCYCLOPENTASILOXANE (D5) CIR / INCI: Cosmetics ingredient -> Antioxidant; Conditioning/Emollient; Moisturizing/Humectant; Other (Specify); Preserva CIR / INCI: Cosmetic ingredients (Cyclopentasiloxane) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Hair conditioning; Emollient; Solvent |
|---|---|
| GHS notification summary | 97% (4427 / 4565) |
| GHS notification summary | 97% (4427 / 4565) |
|---|---|
| Reported hazard statements | H227, H373, H413 |
This chemical does not meet GHS hazard criteria for 97% (4427 of 4565) of all reports.
Reported as not meeting GHS hazard criteria by 4427 of 4565 companies (only 3% companies provided GHS information). For more detailed information, please visit ECHA C&L website.
CYCLOPENTASILOXANE/D5 · CAS 541-02-6 · C10H30O5Si5. UNII 0THT5PCI0R. Boiling Point: 210 °C; Melting Point: -38 °C; Flash Point: 73 °C (163 °F) - closed cup.
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: Cyclopentasiloxane