ChemicalBook > Product Catalog >Chemical Reagents >Organic reagents >Siloxane >1,1,1,3,5,5,5-Heptamethyltrisiloxane

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

1,1,1,3,5,5,5-Heptamethyltrisiloxane Structure
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
Molecular Weight:
222.5
MOL File:
1873-88-7.mol
MSDS File:
SDS
Modify Date:
2024/10/28 16:48:35

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

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)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS02,GHS07
Signal word  Danger
Hazard statements  H225-H315-H319-H335
Precautionary statements  P210-P302+P352-P305+P351+P338
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
NFPA 704
3
1 0

1,1,1,3,5,5,5-Heptamethyltrisiloxane price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 370886 1,1,1,3,5,5,5-Heptamethyltrisiloxane 97% 1873-88-7 50ML ₹7393.48 2022-06-14 Buy
Sigma-Aldrich(India) 370886 1,1,1,3,5,5,5-Heptamethyltrisiloxane 97% 1873-88-7 250ML ₹22580.95 2022-06-14 Buy
TCI Chemicals (India) H1267 1,1,1,3,5,5,5-Heptamethyltrisiloxane min. 98.0 % 1873-88-7 25ML ₹2900 2022-05-26 Buy
TCI Chemicals (India) H1267 1,1,1,3,5,5,5-Heptamethyltrisiloxane min. 98.0 % 1873-88-7 250ML ₹10800 2022-05-26 Buy
ALFA India ALF-H60586-AK Bis(trimethylsiloxy)methylsilane, 97% 1873-88-7 250mL ₹20410 2022-05-26 Buy
Product number Packaging Price Buy
370886 50ML ₹7393.48 Buy
370886 250ML ₹22580.95 Buy
H1267 25ML ₹2900 Buy
H1267 250ML ₹10800 Buy
ALF-H60586-AK 250mL ₹20410 Buy

1,1,1,3,5,5,5-Heptamethyltrisiloxane Chemical Properties,Uses,Production

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.

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.

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

1,1,1,3,5,5,5-heptamethyl-trisiloxan 3H-Heptamethyltrisiloxane heptamethyltrisiloxane 1,1,1,3,5,5,5-HEPTAMETHYLTRISILOXANE BIS(TRIMETHYLSILOXY)METHYLSILANE DOW CORNING 1107 WATER REPELLENT AND POWDER TREATMENT 1,1,1,3,5,5,5-HEPTAMETHYLTRISILOXANE, 97 % 40M25) 40M40,commercialgrade 1,1,1,3,5,5,5-Heptamethyltrisiloxane(Bis(trimethylsiloxy)methylsilane) Bis-(trimethylsilyloxy)-methylsilane Methylbis(trimethylsilyloxy)silane 1,1,1,3,5,5,5-Heptamethylpentanetrisiloxane Methylbis(trimethylsiloxy)silane Trisiloxane, 1,1,1,3,5,5,5-heptamethyl- Bis(trimethylsiloxy) Heptamethyl Trisiloxane (150 mg) (1,1,1,3,5,5,5-Heptamethyltrisiloxane) CFS-887 MDHM Co-Formula CFS-887 Bis(trimethyL 1,1,1,3,5,5,5-Heptamethyltrisiloxane> methyl-bis(trimethylsilyloxy)silicon Heptamethyltrisiloxane HPTSO Heptametrisiloxane HPTSO Heptamethyltrisiloxane 1873-88-7 C7H22O2Si3 CH33SiO2SiHCH3 C7H21O2Si3 Organosilicon Organometallic Reagents Siloxanes Industrial/Fine Chemicals Si (Classes of Silicon Compounds) Siloxanes Si-O Compounds Organometallic Reagents Organosilicon