15721-05-8

Basic information

• Product Name: HEPTAMETHYL CYCLOTETRASILOXANE
• Synonyms: HEPTAMETHYL CYCLOTETRASILOXANE;heptamethyl-cyclotetrasiloxan;HEPTAMETHYLCYCLOTETRASILOXANE, tech-95;2,2,4,4,6,6,8-heptamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
• CAS NO: 15721-05-8
• Molecular Formula: C₇H₂₂O₄Si₄
• Molecular Weight: 282.59
• Mol File: 15721-05-8.mol
• Article Data: 4

Chemical Properties

• Melting Point: -27°C
• Boiling Point: 165°C
• Flash Point: 46°C
• Appearance: /liquid
• Density: 0,958 g/cm3
• Refractive Index: 1.3965
• Storage Temp.: Refrigerator
• Solubility: Chloroform (Slightly), Methanol (Slightly)
• CAS DataBase Reference: HEPTAMETHYL CYCLOTETRASILOXANE(CAS DataBase Reference)
• NIST Chemistry Reference: HEPTAMETHYL CYCLOTETRASILOXANE(15721-05-8)
• EPA Substance Registry System: HEPTAMETHYL CYCLOTETRASILOXANE(15721-05-8)

Safety Data

• Statements: 10
• Safety Statements: 16
• RIDADR: 1993
• TSCA: No
• Hazardous Substances Data: 15721-05-8(Hazardous Substances Data)

Usage

Description

Heptamethylcyclotetrasiloxane, also known as HMCTS, is an organosiloxane compound with the chemical formula (CH3)3SiO)2Si(CH3)2O. It is a colorless liquid with a low odor and is known for its unique properties, such as low toxicity, high thermal stability, and excellent lubricating characteristics.

Uses

Used in Chemical Research:
Heptamethylcyclotetrasiloxane is used as a research compound for studying the structure-activity relations of organosiloxanes. Its unique molecular structure allows scientists to explore the properties and potential applications of this class of compounds.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, Heptamethylcyclotetrasiloxane is used in the study of the female reproductive system. Its properties make it a valuable tool for understanding the interactions between organosiloxanes and biological systems, which can lead to the development of new drugs and therapies for various conditions related to the female reproductive system.

InChI:InChI=1/C7H21O4Si4/c1-12-8-13(2,3)10-15(6,7)11-14(4,5)9-12/h1-7H3

Upstream product

• 75-54-7 Dichloromethylsilane 
• 75-78-5 dimethylsilicon dichloride 
• 3663-50-1 1,1,3,3,5,5-Hexamethyltrisiloxane-1,5-diol 
• 3582-71-6 1,5-dichlorohexamethyltrisiloxane 
• 2487-89-0 benzyl dimethylsilyl ether 

Downstream Products

• 17909-37-4 tetradecamethyl-[2,2']bi[cyclotetrasiloxanyl] 
• 109-68-2 2-pentene 
• 1047-98-9 Heptamethyl-<2-phenyl-propyl>-cyclotetrasiloxan 
• 18297-88-6 2-chloro-2,4,4,6,6,8,8-heptamethylcyclotetrasiloxane 

Relevant articles and documents

Synthesis of high-purity heptamethylchlorocyclotetrasiloxane

The procedures of preparation of heptamethylcyclotetrasiloxane (CH3)7Si4O4H in a 60% yield, its exhaustive purification, and its chlorination to form (CH3)7Si4O4Cl in a quantitative yield were developed. The composition of heptamethylchlorocyclotetrasiloxane and the content of alkali and heavy metal impurities in this compound, permissible for materials used in electronics, were determined by elemental analysis, gas-liquid chromatography, flame photometry, and atomic absorption analysis.

BENZYLOXYDIMETHYLSILANE - A GENERATOR OF DIMETHYL- AND METHYLSILANONES

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