Uses
ChemicalBook > CAS DataBase List > 1,1,1,3,5,5,5-Heptamethyltrisiloxane

1,1,1,3,5,5,5-Heptamethyltrisiloxane

Uses
Product Name
1,1,1,3,5,5,5-Heptamethyltrisiloxane
CAS No.
1873-88-7
Chemical Name
1,1,1,3,5,5,5-Heptamethyltrisiloxane
Synonyms
MDHM;40M25);CFS-887;Bis(trimethyL;Co-Formula CFS-887;Heptametrisiloxane;Bis(trimethylsiloxy);40M40,commercialgrade;heptamethyltrisiloxane;3H-Heptamethyltrisiloxane
CBNumber
CB8446147
Molecular Formula
C7H22O2Si3
Formula Weight
222.5
MOL File
1873-88-7.mol
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1,1,1,3,5,5,5-Heptamethyltrisiloxane Property

Melting point:
<0°C
Boiling point:
142 °C (lit.)
Density 
0.819 g/mL at 25 °C (lit.)
vapor pressure 
8.5hPa at 25℃
refractive index 
n20/D 1.382(lit.)
Flash point:
82 °F
storage temp. 
15-25°C
solubility 
Chloroform (Soluble), Methanol (Slightly)
form 
clear liquid
Specific Gravity
0.8136
color 
Colorless to Almost colorless
Water Solubility 
Miscible with acetone, ethanol, diethyl ether. Insoluble in water.
Hydrolytic Sensitivity
3: reacts with aqueous base
BRN 
1748455
Stability:
Stable. Flammable. Incompatible with strong oxidizing agents.
InChIKey
QNWOFLWXQGHSRH-UHFFFAOYSA-N
LogP
6.2 at 20℃
CAS DataBase Reference
1873-88-7(CAS DataBase Reference)
NIST Chemistry Reference
Trisiloxane, 1,1,1,3,5,5,5-heptamethyl-,(1873-88-7)
EPA Substance Registry System
Trisiloxane, 1,1,1,3,5,5,5-heptamethyl- (1873-88-7)
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Safety

Hazard Codes 
Xi
Risk Statements 
10-36/37/38
Safety Statements 
26-36
RIDADR 
UN 1993 3/PG 2
WGK Germany 
3
10-21
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29319090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H225Highly Flammable liquid and vapour

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
370886
Product name
1,1,1,3,5,5,5-Heptamethyltrisiloxane
Purity
97%
Packaging
50ml
Price
$53.2
Updated
2024/03/01
Sigma-Aldrich
Product number
1228075
Product name
Heptamethyl trisiloxane
Purity
United States Pharmacopeia (USP) Reference Standard
Packaging
150mg
Price
$257
Updated
2024/03/01
TCI Chemical
Product number
H1267
Product name
1,1,1,3,5,5,5-Heptamethyltrisiloxane
Purity
>98.0%(GC)
Packaging
25mL
Price
$19
Updated
2024/03/01
TCI Chemical
Product number
H1267
Product name
1,1,1,3,5,5,5-Heptamethyltrisiloxane
Purity
>98.0%(GC)
Packaging
250mL
Price
$114
Updated
2024/03/01
Alfa Aesar
Product number
H60586
Product name
Bis(trimethylsiloxy)methylsilane, 97%
Packaging
50ml
Price
$117
Updated
2024/03/01
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1,1,1,3,5,5,5-Heptamethyltrisiloxane Chemical Properties,Usage,Production

Uses

Heptamethyltrisiloxane is used to catalyze reduction reactions in organic syntheses.

Description

Bis (trimethylsiloxy) methylsilane acts as an important raw material and intermediate used in organic synthesis, pharmaceutical and dyestuff. For example, it can be used for the platinum-catalyzed aromatic C-H silylation of arenes. It can also be used for the silylation of aryl iodides.

Chemical Properties

colourless liquid

Uses

1,1,1,3,5,5,5-Heptamethyltrisiloxane is a Basic material for synthetic polyalkyleneoxide modified heptamethyltrisiloxane which is a kind of specific structure surfactant for pesticide additives, coating additives, etc.

Uses

Bis(trimethylsiloxy)methylsilane is an important raw material and intermediate used in organic synthesis, pharmaceutical and dyestuff.

Uses

1,1,1,3,5,5,5-Heptamethyltrisiloxane can be used for the aromatic C-H silylation of arenes in the presence of a platinum complex catalyst.
It can also be used as a reagent to synthesize:

  • 3-Octyl-1,1,1,3,5,5,5-heptamethyltrisiloxane, an agricultural adjuvant and sensory performance enhancer used in cosmetic formulations.
  • Isoindigo-based conjugated polymer with siloxane-terminated solubilizing group.
  • Monosiloxy esters with a variety of acids.

Flammability and Explosibility

Flammable

References

https://www.alfa.com/zh-cn/catalog/H60586/
Murata, Miki, et al. "Silylation of Aryl Iodides with 1,1,1,3,5,5,5 -Heptamethyltrisiloxane Catalyzed by Transition-Metal Complexes." Synlett 2007.09(2007):1387-1390.
Murata, Miki, et al. "Platinum-Catalyzed Aromatic C—H Silylation of Arenes with 1,1,1,3,5,5,5-Heptamethyltrisiloxane." Cheminform38.50 (2007):no-no.

1,1,1,3,5,5,5-Heptamethyltrisiloxane Preparation Products And Raw materials

Raw materials

Preparation Products

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1,1,1,3,5,5,5-Heptamethyltrisiloxane Suppliers

Nanjing Quanxi New Materials Co., Ltd
Tel
025-025-58183162-0 18021540488
Email
1094405027@qq.com
Country
China
ProdList
59
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
Advantage
61
Wuhan Chemwish Technology Co., Ltd
Tel
86-027-67849912
Fax
86-027-87531808
Email
sales@chemwish.com
Country
China
ProdList
35896
Advantage
56
Shanghai Sinch Parmaceuticals Tech. Co. Ltd.
Tel
+86-21-54098501
Fax
+86-21-54096319
Email
sales@sinch.com.cn
Country
China
ProdList
11598
Advantage
64
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696
Email
info@hanhongsci.com
Country
China
ProdList
42958
Advantage
64
XiaoGan ShenYuan ChemPharm co,ltd
Tel
15527768850
Email
1791901229@qq.com
Country
China
ProdList
8844
Advantage
52
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View Lastest Price from 1,1,1,3,5,5,5-Heptamethyltrisiloxane manufacturers

Hubei Changfu Chemical Co., Ltd.
Product
1,1,1,3,5,5,5-Heptamethyltrisiloxane 1873-88-7
Price
US $0.00/kg
Min. Order
1kg
Purity
98
Supply Ability
20 tons
Release date
2024-04-25
Hebei Weibang Biotechnology Co., Ltd
Product
Bis(trimethylsiloxy)methylsilane 1873-88-7
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-28
Hebei Mojin Biotechnology Co., Ltd
Product
Bis(trimethylsiloxy)methylsilane 1873-88-7
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-10-17

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