
Decamethylcyclopentasiloxane CAS 541-02-6
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- Appearance: Colorless liquid
- Assay: 99. 0%min
- Stock: In stock
- Sample: Available
- Zhishang Chemical: Decamethylcyclopentasiloxane Supplement



Decamethylcyclopentasiloxane: The Complete Guide
Index of Decamethylcyclopentasiloxane Contents
- Item 1: Basic Info of Decamethylcyclopentasiloxane
- Item 2: What is Decamethylcyclopentasiloxane?
- Item 3: Decamethylcyclopentasiloxane Uses
- Item 4: The Manager has Something to Say
- Item 5: Application of Decamethylcyclopentasiloxane
- Item 6: Reference
- Item 7: Quality Control of Decamethylcyclopentasiloxane
- Item 8: Hot Sale Products
- Item 9: Get Decamethylcyclopentasiloxane Quotation
Decamethylcyclopentasiloxane for Sale
Basic Info of Decamethylcyclopentasiloxane
Chemical Name: | Decamethylcyclopentasiloxane |
Other Name: | Cyclopentasiloxane |
CAS: | 541-02-6 |
EINECS: | 208-764-9 |
Type: | Daily chemical products; Cosmetic raw materials |
Molecular Formula: | C10H30O5Si5 |
Molecular Weight: | 370.77 |
Melting point | -44°C |
Boiling point | 90 °C/10 mmHg (lit.) |
density | 0.958 g/mL at 25 °C (lit.) |
refractive index | n20/D 1.396(lit.) |
Fp | 162 °F |
storage temp. | 2-8°C |
solubility | <0.0001g/l (calculated) |
form | Liquid |
Specific Gravity | 0.959 |
color | Colorless |
explosive limit | 0.52-7%(V) |
Water Solubility | Immiscible with water. |
Hydrolytic Sensitivity | 1: no significant reaction with aqueous systems |
Stability: | Stable. Incompatible with strong oxidizing agents. |
Brand Name: | Zhishang Chemical |
Provide: | Decamethylcyclopentasiloxane MSDS; Decamethylcyclopentasiloxane COA |
What is Decamethylcyclopentasiloxane?
Decamethylcyclopentasiloxane (D 5) is a silicone compound with the molecular formula of [(CH 3) 2SiO] 5. It is a colorless and tasteless liquid with slight volatility.
Cyclopentasiloxane CAS No. 541-02-6, chemical formula C10H30O5Si5, molecular weight 370.77000, Chinese alias decamethylcyclopentasiloxane, liquid, boiling point 90 °C10 mm Hg(lit.), flash point 162 °F, density 0.958 g/mL at 25 °C(lit.), refractive index n20/D 1.396(lit.). Decamethylcyclopentasiloxane (cyclopentasiloxane) is a colorless, odorless, volatile liquid cyclic siloxane, safe and environmentally friendly, and has been widely used in health and beauty products , such as deodorants, antiperspirants, cosmetics, shampoos, body lotions, etc. Good compatibility with alcohol and most other cosmetic solvents.
Cyclopentasiloxane (D5), octamethylcyclotetrasiloxane (D4) and tetramethyltetravinylcyclotetrasiloxane (D4vi) are all important intermediate monomers, which can be combined with End-capping agents such as hexamethyldisiloxane, tetramethyldivinyldisiloxane (DVTMDS) or tetramethyldihydrodisiloxane are used for ring-opening copolymerization to prepare silicone oil, silicone rubber, silicone resin, etc. The purity of the monomer directly affects the quality of silicone oil, silicone rubber, etc., so controlling the purity of the monomer is one of the important technical links in the preparation of high-quality silicone materials, and the physicochemical data of these raw materials provides a reliable basis for its separation and purification process. .
Decamethylcyclopentasiloxane Uses
- It is classified as decycloyloxane. This liquid is commonly used in cosmetics, such as deodorants, sunscreens, hair gels and skin care products.
- Decamethylcyclopentasiloxane is becoming more and more common in hair conditioners because it makes hair easier to comb without breaking.
- Decamethylcyclopentasiloxane is also used as part of silicone based personal lubricants. D 5 is considered a emollient.
- In Canada, about 70% of decamethylcyclopentasiloxane consumer products are used for antiperspirants and 20% for hair care products.
- Decamethylcyclopentasiloxane is widely used in cosmetic and body care products and has good compatibility with most alcohols and other cosmetic solvents.
The Manager has Something to Say

This is William, CEO of Zhishang Chemical Co., Ltd.
Welcome to visit our factory . As the top chemical manufacturer, we have been striving for product quality, innovation , R&D, and customer service for the past 7 years. In the next 10 years or even longer, we are committed to becoming the most reliable chemical supplier in the world , creating a well-known international brand trusted by customers, with the spirit of “one meter wide, ten thousand meters deep”, we continue to focus on product research and development, continue to focus on customer service, continue to improve the supply chain service system, to create a professional chemical supply service team, to achieve win-win long-term cooperation. Please feel free to contact us if you have any questions.
Contact Us
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- Phone: +86 176 5311 3209
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If you want to buy decamethylcyclopentasiloxane, pls contact us to get a free quote.
Application of Decamethylcyclopentasiloxane
Cyclopentamethicone is widely used in cosmetics and body care products and has good compatibility with most alcohols and other cosmetic solvents. Application examples are as follows:
A light-sensing intelligent BB cream, which is composed of the following components by weight: iron oxides/titanium dioxide sintered product 5% to 12%, cyclopentasiloxane 8% to 15%, 1, 3-Propanediol 5%~10%, Glycerin 5%~10%, Cyclopentasiloxane (and) Dimethicone/Vinyl Dimethicone Crosspolymer ( and) polydimethylsiloxane 2% to 5%, isotridecyl isononanoate 2% to 5%, cyclopentamethicone (and) distearyl dimethylammonium lithium montmorillonite Stone (and) propylene carbonate 3% to 5%, polydimethylsiloxane 2% to 5%, nylon-121% to 3%, phenyl trimethicone 1% to 2%, PEG -9 Dimethicone ethyl polydimethylsiloxane 1% to 4%, oat beta-glucan 2% to 4%, cyclopentasiloxane (and) acrylic acid (ester) ) class/polydimethylsiloxane copolymer 0.5%~2%, PEG-10 polydimethylsiloxane 1%~2%, sodium chloride 0.5%~1%, dimethylsilylated Silica 0.1% to 0.3%, phenoxyethanol/ethylhexylglycerin 0.3%, caprylyl glycol/ethylhexylglycerin 0.1%, water balance.
A long-lasting concealer moisturizing air cushion BB cream, the formula weight of which is as follows:
Phase A: Emulsifier: 3%-5%, Dimethicone: 2%-5%, Ethylhexyl Methoxycinnamate: 2%-5%, Cyclopentasiloxane Alkane: 8%-15%, Cetyl Dimethicone: 0.5%-2%, Ethylhexyl Palmitate & Seranium Chloride Hectorite & Isononyl Iononanoate & Ethanol: 0.5 %-1.5%, acrylic (ester)/ethylhexyl acrylate/dimethicone methacrylate copolymer: 0.1%-1%, cyclopentasiloxane & polydimethylsiloxane Siloxane Crosspolymer: 0.5%-2%, Cyclopentasiloxane & Trimethylsiloxysilicate: 2%-5%, Shea Butter: 0.5%-2 %;
Phase B: Butyl Octanol Salicylate: 2%-5%, Tris(ethylhexanoate): 2%-6%, Magnesium Myristate: 0.2-1%, HDI/Trimethylol Caprolactone Crosspolymer & Silica: 0.5%-2%, PMMA: 1%-3%, Titanium Dioxide: 8%-12%, Iron Oxide Red: 0.1%-0.4%, Oxidized Iron yellow: 0.2%-1%, iron oxide black: 0.05%-0.2%;
Phase C: Purified Water: Balance, Butylene Glycol: 5%-10%, Glycerol: 8%-15%, Sodium Chloride: 1%-3%, Trehalose: 0.2%-1%, Phenoxyethanol & Ethylhexylglycerin: 0.5%-0.8%, Sodium Hyaluronate: 0.01%-0.05%;
Phase D: C15-19 Alkane & Diphenyl Dimethicone: 2%-5%;
Phase E: Flavor: 0.1%-0.4%;
The sum of the weight percentages of the above raw materials is 100%.
Reference
- Decamethylcyclopentasiloxane – PubChem
- Record of Decamethylcyclopentasiloxan in the GESTIS Substance Database of the Institute for Occupational Safety and Health.
- Lv Yehong, Hu Yuqian, Dong Hong, Wu Chuan. Study on the Excess Volume Properties of Decamethylcyclopentasiloxane and Three Organosilicon Compounds. Journal of Hangzhou Normal University (Natural Science Edition), Vol. 17, No. 3, May 2018
Quality Control of Decamethylcyclopentasiloxane

