1,1,3,3-Tetramethyldisiloxane

Modify Date: 2025-08-20 11:50:46

1,1,3,3-Tetramethyldisiloxane structure	Common Name	1,1,3,3-Tetramethyldisiloxane
	CAS Number	3277-26-7	Molecular Weight	134.324
	Density	0.76 g/mL at 25 °C(lit.)	Boiling Point	70.8±9.0 °C at 760 mmHg
	Molecular Formula	C₄H₁₄OSi₂	Melting Point	<-78ºC
	MSDS	N/A	Flash Point	-3.4±18.7 °C

Name	(dimethyl-λ3-silanyl)oxy-dimethylsilicon
Synonym	More Synonyms

Density	0.76 g/mL at 25 °C(lit.)
Boiling Point	70.8±9.0 °C at 760 mmHg
Melting Point	<-78ºC
Molecular Formula	C₄H₁₄OSi₂
Molecular Weight	134.324
Flash Point	-3.4±18.7 °C
Exact Mass	134.058319
PSA	9.23000
LogP	4.12
Vapour Pressure	138.4±0.1 mmHg at 25°C
Index of Refraction	n20/D 1.370(lit.)
Storage condition	2-8°C
Water Solubility	DECOMPOSES

1,1,3,3-Tetramethyldisiloxane MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: JN1000000

CHEMICAL NAME :: Disiloxane, 1,1,3,3-tetramethyl-

CAS REGISTRY NUMBER :: 3277-26-7

LAST UPDATED :: 199701

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C4-H14-O-Si2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1221,1986

TYPE OF TEST :: LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 400 gm/m3/2H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,1221,1986

Hazard Codes	F: Flammable;
Risk Phrases	R11
Safety Phrases	S16-S26-S36-S9-S33-S29
RIDADR	UN 2924 3/PG 2
WGK Germany	3
RTECS	JN1000000
Packaging Group	II
Hazard Class	3
HS Code	29310095

Precursor 9
CAS#:2401-73-2 1,3-Dichloro-1,... CAS#:78-10-4 Tetraethyl orth... CAS#:14857-34-2 Ethoxy(dimethyl... CAS#:1066-35-9 Chlorodimethylsilane
CAS#:116417-16-4 (1R,2S,4S)-1-(d... CAS#:2441-21-6 iododimethylsilane CAS#:75-54-7 methyl dichloro... CAS#:676-58-4 Methylmagnesium...
CAS#:1438-82-0 Pentamethyl Dis...
DownStream 10
CAS#:107-50-6 Tetradecamethyl... CAS#:556-67-2 Octamethylcyclo... CAS#:541-02-6 Decamethylcyclo... CAS#:540-97-6 Dodecamethylcyc...
CAS#:556-68-3 hexadecamethylc... CAS#:2441-21-6 iododimethylsilane CAS#:98-82-8 Cumene CAS#:19095-23-9 1,1,3,3,5,5,7,7...
CAS#:19095-24-0 1,1,3,3,5,5,7,7... CAS#:18405-83-9 1,1,3,3-tetrame...

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Dimethylsilyl ether

[Me2Si(H)]2O

Bis(dimethylsilyl) oxide

Tetramethyldisiloxane

Disiloxane, 1,1,3,3-tetramethyl-

[HSi(Me2)]2O

EINECS 221-906-4

sym-Tetramethyldisiloxane

1,1,3,3-Tetramethyldisiloxane

1,3-Dihydrotetramethyldisiloxane

HSiMe2OSiMe2H

DISILOXANE,1,1,3,3-TETRAMETHYL

MFCD00008256

Bis(dimethylsilyl) ether

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Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 1,1,3,3-Tetramethyldisiloxane
Price: Check
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China
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Price: ￥268.0/100ml ￥98.0/25ml
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Dayang Chem (Hangzhou) Co., Ltd.
China
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Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
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Henan Tianfu Chemical Co., Ltd.
China
Product Name: 1,1,3,3-Tetramethyldisiloxane
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
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Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: 1,1,3,3-Tetramethyldisiloxane
Price: ￥Inquiry/25kg
Purity: 99.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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