CYCLOPENTASILOXANE/D5 (CAS 541-02-6) — formula C10H30O5Si5, molecular weight 370.77.
Documented applications: 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..
CYCLOPENTASILOXANE/D5 is a chemical compound with CAS registry number 541-02-6 and molecular formula C10H30O5Si5 (molecular weight 370.77).
CAS number: 541-02-6
Its molecular formula C10H30O5Si5 comprises 10 C, 30 H, 5 O, 5 Si atoms.
Also known as: CYCLOPENTASILOXANE/D5 · Cyclopentasiloxane
The CAS registry number of CYCLOPENTASILOXANE/D5 is 541-02-6.
Molecular formula C10H30O5Si5, molecular weight 370.77.
It is also registered under: CYCLOPENTASILOXANE/D5, Cyclopentasiloxane.
Recorded applications: 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..
Public-database records for CYCLOPENTASILOXANE/D5 (CAS 541-02-6), reproduced here for independent cross-checking.
| 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.
| 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) |
| 沸点 | 210 °C |
|---|---|
| 熔点 | -38 °C |
| 闪点 | 73 °C (163 °F) - closed cup |
| 溶解度 | In water, 1.7X10-2 mg/L at 25 °C |
| 密度 | 0.9593 g/cu cm at 20 °C |
| 蒸气压 | 0.2 [mmHg] |
| 黏度 | 3.9 cSt at 25 °C |
| Surface Tension | 18.5 dyne/cm at 25 °C |
| CAS Registry Number | 541-02-6 |
|---|---|
| PubChem CID | 10913 |
| 分子式 | C10H30O5Si5 |
| IUPAC 名称 | 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 |
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
| 分子量 | 370.77 |
|---|---|
| 氢键供体数 | 0 |
| 氢键受体数 | 5 |
| 可旋转键数 | 0 |
| 精确质量 | 370.09395673 |
| 单同位素质量 | 370.09395673 |
| 拓扑极性表面积 | 46.2 |
| 重原子数 | 20 |
| 形式电荷 | 0 |
| 复杂度 | 258 |
CYCLOPENTASILOXANE/D5 · CAS 541-02-6 · C10H30O5Si5. UNII 0THT5PCI0R. 沸点: 210 °C; 熔点: -38 °C; 闪点: 73 °C (163 °F) - closed cup.
Source: PubChem / Wikidata; the batch COA governs where values differ.
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