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Dodecamethylpentasiloxane

Dodecamethylpentasiloxane Structure
Dodecamethylpentasiloxane structure
CAS No.
141-63-9
Chemical Name:
Dodecamethylpentasiloxane
Synonyms
Pentasiloxane, dodecamethyl-;DK539;KF 96L2CS;DKFELEX0131;DC 200 Fluid 2;Simethicone Impurity 8;Penta(dimethylsiloxane);odecamethylpentasiloxane;dodecamethyl-pentasiloxan;Dodecamethylpentasiloxane
CBNumber:
CB6259604
Molecular Formula:
C12H36O4Si5
Molecular Weight:
384.84
MDL Number:
MFCD00039795
MOL File:
141-63-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:54:08
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Dodecamethylpentasiloxane Properties

Melting point -81 °C (lit.)
Boiling point 230 °C (lit.)
Density 0.875 g/mL at 25 °C (lit.)
vapor pressure <1 mm Hg ( 20 °C)
refractive index n20/D 1.392(lit.)
Flash point 187 °F
storage temp. Refrigerator
solubility Benzene (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
form liquid
Specific Gravity 0.876
color Colourless
Viscosity 1.7mm2/s
Water Solubility 70.41ng/L at 23℃
Hydrolytic Sensitivity 1: no significant reaction with aqueous systems
Merck 14,3404
Henry's Law Constant 8.7×10-8 mol/(m3Pa) at 25℃, Mazzoni et al. (1997)
Dielectric constant 2.5(20℃)
Cosmetics Ingredients Functions ANTIFOAMING
InChI 1S/C12H36O4Si5/c1-17(2,3)13-19(7,8)15-21(11,12)16-20(9,10)14-18(4,5)6/h1-12H3
InChIKey FBZANXDWQAVSTQ-UHFFFAOYSA-N
SMILES C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C
LogP 9.411 at 25℃
CAS DataBase Reference 141-63-9(CAS DataBase Reference)
EWG's Food Scores 2
FDA UNII 0QDQ2VQ5YJ
EPA Substance Registry System Pentasiloxane, dodecamethyl- (141-63-9)
UNSPSC Code 12352103
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
RIDADR  NA 1993 / PGIII
WGK Germany  3
RTECS  SB0970000
TSCA  TSCA listed
HS Code  2931.90.9010
Storage Class 10 - Combustible liquids
Hazardous Substances Data 141-63-9(Hazardous Substances Data)
Toxicity guinea pig,LDLo,oral,50gm/kg (50000mg/kg),Journal of Industrial Hygiene and Toxicology. Vol. 30, Pg. 332, 1948.
REACH Registrations Active

Dodecamethylpentasiloxane price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 447269 Dodecamethylpentasiloxane 97% 141-63-9 10ml $84 2026-04-30 Buy
Sigma-Aldrich 447269 Dodecamethylpentasiloxane 97% 141-63-9 50ml $271 2026-04-30 Buy
TCI Chemical D4394 Dodecamethylpentasiloxane >98.0%(GC) 141-63-9 25mL $132 2026-04-30 Buy
TRC TRC-D494525-1ML Dodecamethylpentasiloxane 141-63-9 1mL $192 2026-06-03 Buy
TRC TRC-D494525-10ML Dodecamethylpentasiloxane 141-63-9 10mL $1444 2026-06-03 Buy
Product number Packaging Price Buy
447269 10ml $84 Buy
447269 50ml $271 Buy
D4394 25mL $132 Buy
TRC-D494525-1ML 1mL $192 Buy
TRC-D494525-10ML 10mL $1444 Buy

Dodecamethylpentasiloxane Chemical Properties, Uses, Production

Chemical Properties

clear colorless liquid

Uses

A non-cyclic polydimethyl siloxane. Study shows that it can be transformed by a specific microflora and in the natural environment degraded by mechanisms similar to other organic compounds.

Uses

As a basis for silicone oils or fluids designed to withstand extremes of temperature; as a foam suppressant in petroleum lubricating oil.

Definition

ChEBI: An organosiloxane that is pentasiloxane in which all the hydrogens have been replaced by methyl groups. Metabolite observed in cancer metabolism.

Flammability and Explosibility

Non flammable

Toxics Screening Level

The initial threshold screening level (ITSL) for dodecamethylpentasiloxane remains at 0.1 μg/m3 based on an annual averaging time.

Dodecamethylpentasiloxane synthesis

75-77-4
18420-09-2
141-63-9
Synthesis of Dodecamethylpentasiloxane from Chlorotrimethylsilane and 1,1,3,3-Tetramethyl-1,3-diethoxydisiloxane

Dodecamethylpentasiloxane Preparation Products And Raw materials

Raw materials

Tetradecamethylhexasiloxane Decamethyltetrasiloxane

Preparation Products

Octamethyltrisiloxane Hexamethyldisiloxane

Dodecamethylpentasiloxane Suppliers

Global Suppliers ( 162)
Supplier Tel Email Country ProdList Advantage
Anhui Silicon Innovation Materials Technology Co., Ltd. 17201714774 3317543774@qq.com China 789 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Beijing HwrkChemical Technology Co., Ltd 89508211 18501085097 sales.bj@hwrkchemical.com China 9407 55
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Chemsky (shanghai) International Co.,Ltd 021-50135380 shchemsky@sina.com China 15350 60
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57
Syntechem Co.,Ltd info@syntechem.com China 12973 57
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80
Supplier Advantage
Anhui Silicon Innovation Materials Technology Co., Ltd. 58
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Beijing HwrkChemical Technology Co., Ltd 55
Adamas Reagent, Ltd. 59
Shanghai Hanhong Scientific Co.,Ltd. 64
Chemsky (shanghai) International Co.,Ltd 60
Shandong Xiya Chemical Co., Ltd 57
Syntechem Co.,Ltd 57
TOKYO CHEMICAL INDUSTRY CO., LTD. 80

View Latest Price from Dodecamethylpentasiloxane manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
DODECAMETHYLPENTASILOXANE pictures 2026-08-18 DODECAMETHYLPENTASILOXANE
141-63-9
 1KG 98% 205-492-2 Shanghai Daken Advanced Materials Co.,Ltd
Dodecamethylpentasiloxane pictures 2026-07-15 Dodecamethylpentasiloxane
141-63-9
 $29.00 97.62% 10g TargetMol Chemicals Inc.
DODECAMETHYLPENTASILOXANE pictures 2019-12-26 DODECAMETHYLPENTASILOXANE
141-63-9
 $1.00 1KG 99% 600kg Career Henan Chemical Co

Dodecamethylpentasiloxane Spectrum

DODECAMETHYLPENTASILOXANE(141-63-9)1HNMR

141-63-9 (Dodecamethylpentasiloxane) Related Search:

Chloromethyltris(trimethylsiloxy)silane Bis(trimethylsiloxy)methylmethoxysilane Chloromethylpentamethyldisiloxane N-(N-Octadecyl)acrylamide Tetrakis(trimethylsiloxy)silane
Hexaphenyldisiloxane Chloro(dodecyl)dimethylsilane Octadecyltrimethoxysilane Trimethylstearylammonium Chloride methacryloxypentamethyldisiloxane
chloromethylphenethyltris(trimethylsiloxy)silane,mixed m-,p- ,a-,b-isomers Methyltris(dimethylsiloxy)silane Methyltris(trimethylsiloxy)silane Hexaethyldisiloxane Hexavinyldisiloxane
Dodecamethylpentasiloxane Pentamethyldisiloxane 1,1,3,3,5,5-Hexamethyltrisiloxane

1of4

1,1,1,3,3,5,5,7,7,9,9,9-Dodecamethylpentasiloxane dodecamethyl-pentasiloxan Dodecamethyl-2,4,6,8-tetraoxa-1,3,5,7,9-pentasilanonane Dodecamethylnonanepentasiloxane Penta(dimethylsiloxane) Dodecamethylpentasiloxane,97% DC 200 Fluid 2 KF 96L2CS Pentasiloxane, 1,1,1,3,3,5,5,7,7,9,9,9-dodecamethyl- odecamethylpentasiloxane Simethicone Impurity 8 DK539 DKFELEX0131 Dodecamethylpentasiloxane (Standard) Pentasiloxane, dodecamethyl- Dodecamethylpentasiloxane 141-63-9 CH33SiOSiCH32O3SiCH33 Organosilicon Siloxanes Organometallic Reagents Organics Organometallic Reagents Organosilicon Siloxanes Intermediates & Fine Chemicals Pharmaceuticals Chemical Synthesis Organometallic Reagents