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Tris(trimethylsiloxy)silane

Tris(trimethylsiloxy)silane structure

CAS No.: 1873-89-8

Chemical Name:: Tris(trimethylsiloxy)silane

Synonyms: Trisiloxane, 1,1,1,5,5,5-hexamethyl-3-[(trimethylsilyl)oxy]-;1,1,1,5,5,5-Hexamethyl-3-((trimethylsilyl)oxy)trisiloxane;DK196;DK195;Tris(trimethylsiloxy)silane;ris(trimethylsilyloxy)silicon;TRIS(TRIMETHYLSILYLOXY)SILANE;tris(trimethylsilyloxy)silicon;Tris(trimethylsilyloxy)silane,97%;TRIS(TRIMETHYLSILYLOXY)SILANE, 98+%

CBNumber:: CB2487669

Molecular Formula:: C9H28O3Si4

Molecular Weight:: 296.66

MDL Number:: MFCD00054865

MOL File:: 1873-89-8.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-09-12 18:51:19

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Tris(trimethylsiloxy)silane Properties

Melting point	<0°C
Boiling point	185 °C (lit.)
Density	0.852 g/mL at 25 °C (lit.)
refractive index	n20/D 1.386(lit.)
Flash point	131 °F
storage temp.	Inert atmosphere,Room Temperature
solubility	Benzene (Slightly), Chloroform (Sparingly)
form	clear liquid
color	Colorless to Almost colorless
Specific Gravity	0.852
Hydrolytic Sensitivity	3: reacts with aqueous base
BRN	1772735
Stability	Hygroscopic, Moisture sensitive
InChI	1S/C9H28O3Si4/c1-14(2,3)10-13(11-15(4,5)6)12-16(7,8)9/h13H,1-9H3
InChIKey	FDWGGTLVZGTDGQ-UHFFFAOYSA-N
SMILES	C[Si](C)(C)O[SiH](O[Si](C)(C)C)O[Si](C)(C)C
UNSPSC Code	12352103
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02

Signal word

Warning

Hazard statements

H226

Precautionary statements

P210-P240-P241-P280a-P303+P361+P353-P501a

PPE

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Risk Statements

Safety Statements

23-24/25

RIDADR

UN 1993 3/PG 3

WGK Germany

10-21

TSCA

HazardClass

PackingGroup

III

HS Code

29310099

Storage Class

3 - Flammable liquids

Hazard Classifications

Flam. Liq. 3

Limited Quantities

5.0 L (1.3 gallons) (liquid)

Excepted Quantities

Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

NFPA 704

	2
2		0

Tris(trimethylsiloxy)silane price More Price(16)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	370908	Tris(trimethylsiloxy)silane ≥98%	1873-89-8	25g	$212	2026-04-30	Buy
TCI Chemical	T3520	Tris(trimethylsilyloxy)silane >98.0%(GC)	1873-89-8	5mL	$37	2026-04-30	Buy
TCI Chemical	T3520	Tris(trimethylsilyloxy)silane >98.0%(GC)	1873-89-8	25mL	$117	2026-04-30	Buy
Chem-Impex	40482	Tris(trimethylsilyloxy)silane ≥98%(GC)	1873-89-8	5ML	$35	2026-05-19	Buy
Chem-Impex	40482	Tris(trimethylsilyloxy)silane ≥98%(GC)	1873-89-8	25ML	$120	2026-05-19	Buy

Product number	Packaging	Price	Buy
370908	25g	$212	Buy
T3520	5mL	$37	Buy
T3520	25mL	$117	Buy
40482	5ML	$35	Buy
40482	25ML	$120	Buy

Tris(trimethylsiloxy)silane Chemical Properties, Uses, Production

Chemical Properties

Clear colorless liquid

Application

Gives highly stereoselective reduction of substituted cyclohexanones.

Tris(trimethylsiloxy)silane Preparation Products And Raw materials

Raw materials

Preparation Products

Tris(trimethylsiloxy)silane Suppliers

Global Suppliers ( 98)

Supplier	Tel	Email	Country	ProdList	Advantage
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
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
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
Shandong Xiya Chemical Co., Ltd	13355009207 13355009207	3007715519@qq.com	China	18722	57
Thermo Fisher Scientific	800-810-5118	cnchemical@thermofisher.com	China	17752	75
TOKYO CHEMICAL INDUSTRY CO., LTD.	03-36680489	Sales-JP@TCIchemicals.com	Japan	28364	80

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
Alfa Aesar	84
TCI (Shanghai) Development Co., Ltd.	81
Energy Chemical	61
Adamas Reagent, Ltd.	59
Shanghai Hanhong Scientific Co.,Ltd.	64
Shandong Xiya Chemical Co., Ltd	57
Thermo Fisher Scientific	75
TOKYO CHEMICAL INDUSTRY CO., LTD.	80

View Latest Price from Tris(trimethylsiloxy)silane manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2026-08-25	tris(trimethylsiloxy)silane 1873-89-8	$1.10-9.90	1kg	99%min	100kg	ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
	2019-07-06	TRIS(TRIMETHYLSILOXY)SILANE 1873-89-8	$2.00	1KG	99%		Career Henan Chemical Co

tris(trimethylsiloxy)silane
1873-89-8
$1.10-9.90
99%min
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

TRIS(TRIMETHYLSILOXY)SILANE
1873-89-8
$2.00
99%
Career Henan Chemical Co

Tris(trimethylsiloxy)silane Spectrum

TRIS(TRIMETHYLSILOXY)SILANE(1873-89-8)¹HNMR TRIS(TRIMETHYLSILOXY)SILANE(1873-89-8)IR TRIS(TRIMETHYLSILOXY)SILANE(1873-89-8)Raman

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tris(trimethylsilyloxy)silicon TRIS(TRIMETHYLSILYLOXY)SILANE 1,1,5,5,5-hexamethyl-3-[(trimethylsilyl)oxy]trisiloxane TRIS(TRIMETHYLSILYLOXY)SILANE, 98+% 1,1,1,5,5,5-Hexamethyl-3-(trimethylsiloxy)pentanetrisiloxane 1,1,1,5,5,5-Hexamethyl-3-(trimethylsilyloxy)pentanetrisiloxane 1,1,1,5,5,5-Hexamethyl-3-[(trimethylsilyl)oxy]pentanetrisiloxane Tris(trimethylsilyloxy)silane,97% Tris(trimethylsiloxy)silane (Technical Grade) ris(trimethylsilyloxy)silicon 2,2,6,6-tetramethyl-4-[(trimethylsilyl)oxy]-3,5-dioxa-2,4,6-trisilaheptan-4-yl DK196 DK195 1,1,1,5,5,5-Hexamethyl-3-((trimethylsilyl)oxy)trisiloxane Trisiloxane, 1,1,1,5,5,5-hexamethyl-3-[(trimethylsilyl)oxy]- Tris(trimethylsiloxy)silane 1873-89-8 1874-89-8 C9H28O3Si4 CH33SiO3SiH Siloxanes Organometallic Reagents Organosilicon Organometallic Reagents Organosilicon Siloxanes