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

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
F: 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

Toxics Screening Level

The ITSL for heptamethyltrisiloxane has been changed from 0.04 μg/m3 to 0.1 μg/m3 based on an annual averaging time.

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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View Lastest Price from 1,1,1,3,5,5,5-Heptamethyltrisiloxane manufacturers

Hebei Zhuanglai Chemical Trading Co Ltd

Product: Heptamethyltrisiloxane 1873-88-7
Price: US $79.00-38.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 20ton
Release date: 2024-12-06

Hubei Changfu Chemical Co., Ltd.

Product: 1,1,1,3,5,5,5-Heptamethyltrisiloxane 1873-88-7
Price: US $0.00-0.00/kg
Min. Order: 1kg
Purity: 97
Supply Ability: 20 tons
Release date: 2024-12-19

Hebei Mujin 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

1873-88-7, 1,1,1,3,5,5,5-HeptamethyltrisiloxaneRelated Search:

Octamethylcyclotetrasiloxane POLYDIMETHYLSILOXANE TRIMETHYLSILANE Hexamethyldisiloxane Octamethyltrisiloxane Azidotrimethylsilane Dimethicone Hexamethyldisilane POLY(DIMETHYLSILOXANE), HYDROXY TERMINATED Hexamethylcyclotrisiloxane Methyltris(methylethylketoxime)silane Trimethoxysilane Methyltriethoxysilane Decamethylcyclopentasiloxane Polymethylhydrosiloxane Methyltrichlorosilane tert-Butyldimethylsilyl chloride Iodotrimethylsilane

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&gt

methyl-bis(trimethylsilyloxy)silicon

Heptamethyltrisiloxane HPTSO

Heptametrisiloxane

HPTSO Heptamethyltrisiloxane

1873-88-7

5737-56-8

C7H22O2Si3

CH33SiO2SiHCH3

C7H21O2Si3

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Siloxanes

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