Decamethylcyclopentasiloxane
- CAS No.
- 541-02-6
- Chemical Name:
- Decamethylcyclopentasiloxane
- Synonyms
- Cyclopentasiloxane, decamethyl-;CYCLOPENTASILOXANE;D5;Cyclomethicone 5;DecamethyL;DECAMETHYLCYCLOPENTASILOXAN;2,2,4,4,6,6,8,8,10,10-Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane;D5 Cyclomethicone;Dimethylsiloxane pentamer;Decamethylcylopentasiloxane
- CBNumber:
- CB9256200
- Molecular Formula:
- C10H30O5Si5
- Molecular Weight:
- 370.77
- MDL Number:
- MFCD00046966
- MOL File:
- 541-02-6.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Decamethylcyclopentasiloxane analytical standard | 43217 | 250mg | $106 |
| Cyclomethicone 5 United States Pharmacopeia (USP) Reference Standard | 1154809 | 200mg | $470 |
| Decamethylcyclopentasiloxane >99.0%(GC) | D1890 | 25mL | $25 |
| Decamethylcyclopentasiloxane >99.0%(GC) | D1890 | 100mL | $56 |
| D5 Cyclomethicone Pharmaceutical Secondary Standard; Certified Reference Material | PHR1566 | 500mg | $122 |
| More product size | |||
| Melting point | -44°C |
|---|---|
| Boiling point | 90 °C/10 mmHg (lit.) |
| Density | 0.958 g/mL at 25 °C (lit.) |
| vapor pressure | 33.2Pa at 25℃ |
| refractive index |
n |
| Flash point | 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 |
| Merck | 14,2848 |
| BRN | 1800166 |
| Henry's Law Constant | 2.8×10-7 mol/(m3Pa) at 25℃, Xu and Kropscott (2014) |
| Dielectric constant | 2.5（20℃） |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application |
cleaning products cosmetics environmental food and beverages personal care |
| Cosmetics Ingredients Functions |
SKIN CONDITIONING - EMOLLIENT SOLVENT HAIR CONDITIONING SKIN CONDITIONING |
| Cosmetic Ingredient Review (CIR) | Decamethylcyclopentasiloxane (541-02-6) |
| InChI | 1S/C10H30O5Si5/c1-16(2)11-17(3,4)13-19(7,8)15-20(9,10)14-18(5,6)12-16/h1-10H3 |
| InChIKey | XMSXQFUHVRWGNA-UHFFFAOYSA-N |
| SMILES | C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 |
| LogP | 8.07 at 24.6℃ |
| Surface tension | 18.29 mN/m at 297.15K |
| Substances of Very High Concern (SVHC) Candidate List | Decamethylcyclopentasiloxane (541-02-6) |
| CAS DataBase Reference | 541-02-6(CAS DataBase Reference) |
| EWG's Food Scores | 3 |
| FDA UNII | 0THT5PCI0R |
| NIST Chemistry Reference | Decamethylcyclopentasiloxane(541-02-6) |
| EPA Substance Registry System | Decamethylcyclopentasiloxane (541-02-6) |
| UNSPSC Code | 77101502 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H227-H320-H413 | |||||||||
| Precautionary statements | P210-P264-P280-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501-P210e-P280a-P370+P378a-P501a | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38-53 | |||||||||
| Safety Statements | 23-24/25-36-26 | |||||||||
| RIDADR | NA 1993 / PGIII | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | GY5945200 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29310095 | |||||||||
| Storage Class | 10 - Combustible liquids | |||||||||
| Hazardous Substances Data | 541-02-6(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 oral in rat: > 24134mg/kg | |||||||||
| NFPA 704 |
|
Decamethylcyclopentasiloxane price More Price(24)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 43217 | Decamethylcyclopentasiloxane analytical standard | 541-02-6 | 250mg | $106 | 2026-03-19 | Buy |
| Sigma-Aldrich | 1154809 | Cyclomethicone 5 United States Pharmacopeia (USP) Reference Standard | 541-02-6 | 200mg | $470 | 2026-03-19 | Buy |
| TCI Chemical | D1890 | Decamethylcyclopentasiloxane >99.0%(GC) | 541-02-6 | 25mL | $25 | 2026-03-19 | Buy |
| TCI Chemical | D1890 | Decamethylcyclopentasiloxane >99.0%(GC) | 541-02-6 | 100mL | $56 | 2026-03-19 | Buy |
| Sigma-Aldrich | PHR1566 | D5 Cyclomethicone Pharmaceutical Secondary Standard; Certified Reference Material | 541-02-6 | 500mg | $122 | 2026-03-19 | Buy |
Decamethylcyclopentasiloxane Chemical Properties,Uses,Production
Chemical Properties
liquid
Uses
A cyclic volatile methylsiloxane (cVMS) used in cosmetic and personal care products. Used in dermal exposure and inhalation toxicity study.
Uses
Intermediate in the manufacture of high mol wt siloxane polymers. Carrier ingredient in personal care products; dry cleaning solvent.
Uses
cyclopentasiloxane is incorporated into a formulation for its emollient and solvent activity.
Uses
Octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane are major industrial products, which are either marketed as such or used for the production of polydimethylsiloxanes.
Definition
ChEBI: Decamethylcyclopentasiloxane is an organosilicon compound.
General Description
D5 Cyclomethicone is a cyclic siloxane, that has a silicon-oxygen bond in a cyclic arrangement and methyl groups attached with the silicon atom. It is used in the production of some silicon-based polymers that are widely used in various personal care products.
Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.
Flammability and Explosibility
Non flammable
Toxics Screening Level
The initial threshold screening level (ITSL) for decamethylcyclopentasiloxane is 200 μg/m3, with annual averaging time.
Decamethylcyclopentasiloxane Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| QINGDAO KAIENSI INTERNATIONAL TRADE CO.,LTD. | +86-0532-8699-9256 +8615254267723 | kaley@cnfdevelop.com | China | 1410 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8618531123677 | faithe@yan-xi.com | China | 5853 | 58 |
| Wuhan Fortuna Chemical Co., Ltd | +86-27-59207850 | info@fortunachem.com | China | 5972 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5235 | 58 |
| Hebei Jingbo New Material Technology Co., Ltd | +8619931165850 | hbjbtech@163.com | China | 1000 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20124 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Hebei Longbang Technology Co., LTD | +86-18633929156 | admin@hblongbang.com | China | 972 | 58 |
| Shandong Deshang Chemical Co., Ltd. | +86-0531-8875-2665 +8613153039501 | info@deshangchem.com | China | 661 | 58 |
View Lastest Price from Decamethylcyclopentasiloxane manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-04-17 | Decamethylcyclopentasiloxane
541-02-6
|
US $0.00 / KG | 1KG | 98%min | 30tons/month | WUHAN FORTUNA CHEMICAL CO., LTD | |
 |
2026-03-20 | Decamethylcyclopentasiloxane
541-02-6
|
US $1.00 / KG | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-09-25 | Decamethylcyclopentasiloxane
541-02-6
|
US $100.00-1.00 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd |
-
- Decamethylcyclopentasiloxane
541-02-6
- US $0.00 / KG
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- Decamethylcyclopentasiloxane
541-02-6
- US $1.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Decamethylcyclopentasiloxane
541-02-6
- US $100.00-1.00 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
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