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Decamethylcyclopentasiloxane (D5) is a cyclic siloxane, that has a silicon-oxygen bond in a cyclic arrangement and methyl groups attached with the silicon atom.
Decamethylcyclopentasiloxane (D5) 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.
CAS: 541-02-6
MF: C10H30O5Si5
MW: 370.77
EINECS: 208-764-9
Synonyms
2,2,4,4,6,6,8,8,10,10-Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane;CD3770;cyclicdimethylsiloxanepentamer;Cyclopentasiloxane, decamethyl-;D3770;Decamethylcylopentasiloxane;siliconsf1202;unioncarbide7158siliconefluid;DECAMETHYLCYCLOPENTASILOXANE;541-02-6;Cyclopentasiloxane, decamethyl-;Cyclomethicone 5;2,2,4,4,6,6,8,8,10,10-Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane;CYCLOPENTASILOXANE;Dimethylsiloxane pentamer;Dow corning 345;NUC silicone VS 7158;Silicon SF 1202;Ciclopentasiloxane;Cyclic dimethylsiloxane pentamer;Cyclomethicone D5;Dekamethylcyklopentasiloxan;D5-sil;KF 995;CCRIS 1328;VS 7158;HSDB 5683;UNII-0THT5PCI0R;0THT5PCI0R;Ddecamethylcyclopentasiloxane;EINECS 208-764-9;SF 1202;BRN 1800166;DTXSID1027184;JEESILC CPS-211;XIAMETER PMX-0245;DTXCID907184;CYCLOPENTASILOXANE (D5);D5;EC 208-764-9;4-04-00-04128 (Beilstein Handbook Reference);KF-995;DOW CORNING ST CYCLOMETHICONE 5;OCTAMETHYLCYCLOTETRASILOXANE (D5);KP-545 COMPONENT CYCLOMETHICONE 5;2,2,4,4,6,6,8,8,10,10-decamethyl-1,3,5,7,9,2,4,6,8,10-pentoxapentasilecane;CYCLOMETHICONE 5 (USP-RS);CYCLOMETHICONE 5 [USP-RS];MFCD00046966;Dekamethylcyklopentasiloxan [Czech];decamethyl cyclopentasiloxane;C10H30O5Si5;Lightening Serum;D5 Cyclomethicone;dimethylcyclopentasiloxane;Decamethylcylopentasiloxane;UNII: 0THT5PCI0R;SCHEMBL28497;N-Propylheptamethyltrisiloxane;CHEMBL1885178;3CE PINK IM GOOD MASCARA;CHEBI:191092;Decamethylcyclopentasiloxane, 97%;Cyclopentasiloxane, 2,2,4,4,6,6,8,8,10,10-decamethyl-;CYCLOMETHICONE 5 [WHO-DD];BCP15826;Tox21_303170;CD3770;CYCLOPENTASILOXANE, DECAMETHYL;AKOS008901199;CS-W009767;DB11244;HY-W009051;DECAMETHYLCYCLOPENTASILOXANE [MI];NCGC00163981-01;NCGC00257224-01;AS-59731;CAS-541-02-6;DA-72620;DECAMETHYLCYCLOPENTASILOXANE [HSDB];D1890;D3770;Decamethylcyclopentasiloxane (cyclic monomer);NS00043162;D78203;S05475;Decamethylcyclopentasiloxane, analytical standard;Q414350;decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane;Cyclomethicone 5, United States Pharmacopeia (USP) Reference Standard;2,2,4,4,6,6,8,8,10,10-Decamethyl-1,3,5,7,9,2,4,6,8,10-pentaoxapentasilecane #;D5 Cyclomethicone, Pharmaceutical Secondary Standard; Certified Reference Material
Decamethylcyclopentasiloxane (D5) Chemical Properties
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: 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
Merck: 14,2848
BRN: 1800166
Dielectric constant: 2.5（20℃）
Stability: Stable. Incompatible with strong oxidizing agents.
InChIKey: XMSXQFUHVRWGNA-UHFFFAOYSA-N
LogP: 8.07 at 24.6℃
CAS DataBase Reference: 541-02-6(CAS DataBase Reference)
NIST Chemistry Reference: Decamethylcyclopentasiloxane (D5) (541-02-6)
EPA Substance Registry System: Decamethylcyclopentasiloxane (D5) (541-02-6)
Decamethylcyclopentasiloxane (D5) is a volatile polydimethylcyclosiloxane, mainly composed of decamethylcyclopentasiloxane, colorless and transparent, with low flow point and fast reaction speed.
Decamethylcyclopentasiloxane (D5) is widely used in cosmetics and human care products, such as Skin care, sunscreen, makeup, hair conditioning and other products have good compatibility with most alcohols and other cosmetic solvents.
Decamethylcyclopentasiloxane (D5) can be used directly as a carrier, main raw material, or as an additive; it can also be used in an aqueous system by emulsification.
Performance and Application
Decamethylcyclopentasiloxane (D5) is the basic raw material of silicone oil, emulsion, silicone rubber, silicone resin and other silicone products, and can also be directly used as rubber filler treatment agent and cosmetic raw material.
Decamethylcyclopentasiloxane (D5) is classified as a cyclomethicone.
Such fluids are commonly used in cosmetics, such as deodorants, sunblocks, hair sprays and skin care products.
Decamethylcyclopentasiloxane (D5) is becoming more common in hair conditioners, as it makes the hair easier to brush without breakage.
Decamethylcyclopentasiloxane (D5) is also used as part of silicone-based personal lubricants.
Decamethylcyclopentasiloxane (D5) is considered an emollient.
In Canada, among the volume used in consumer products approximately 70% were for antiperspirants and 20% for hair care products.
10,000–100,000 tonnes per year of Decamethylcyclopentasiloxane (D5) is manufactured and/or imported in the European Economic Area.
Atmospheric emissions of Decamethylcyclopentasiloxane (D5) in the Northern Hemisphere were estimated to 30,000 tonnes per year.
Decamethylcyclopentasiloxane (D5) has also been tried as a dry-cleaning solvent in the early 2000s.
Decamethylcyclopentasiloxane (D5) was marketed as a more environmentally friendly solvent than tetrachloroethylene (the most common dry-cleaning solvent worldwide) despite being controlled in the EU for to its persistent, bioaccumulative and toxic characteristics.
