Heptamethyldisilazane

Basic Information

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CAS Number

920-68-3

Molecular Formula

C7H21NSi2

Molecular Weight

175.42 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Boiling Point

147°C

Density

0.799 g/mL at 20 °C

Refractive Index

n20/D 1.421(lit.)

SMILES

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CN([Si](C)(C)C)[Si](C)(C)C

InChI

InChI=1S/C7H21NSi2/c1-8(9(2,3)4)10(5,6)7/h1-7H3

InChIKey

ZSMNRKGGHXLZEC-UHFFFAOYSA-N

LogP

2.588000000000001

Topological Polar Surface Area

3.24 Å²

Hydrogen Bond Donor/Acceptor

0 / 1

Complexity

95.8

Safety Information

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GHS Hazard Pictograms

H226

H315

H319

H335

Hazard Statement

H226 Flammable liquid and vapor
Flammable liquids

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Hazard Class

Class 3 Class 3

Sensitiveness

Moisture Sensitive

Synonyms & References

English

N,1,1,1-Tetramethyl-N-(trimethylsilyl)silanamine
BIS(TRIMETHYLSILYL)METHYLAMINE
HEPTAMETHYLDISILAZANE
N,N-BIS(TRIMETHYLSILYL)METHYLAMINE
n,1,1,1-tetramethyl-n-(trimethylsilyl)-silanamin
N-1,1,1-tetramethyl-N-(trimethylsilyl)-Silanamine
N,1,1,1-tetramethyl-N-(trimethylsilyl)silylamine
1,1,1,2,3,3,3-Heptamethyldisilazane
Silanamine, N,1,1,1-tetramethyl-N-(trimethylsilyl)-
N,N-Bis(trimethylsilyl)methanamine
(Methylimino)bis(trimethylsilane)
Heptamethylpropanedisilazane
Methylbis(trimethylsilyl)amine
Disilazane, heptamethyl- (6CI, 7CI)
N,1,1,1-Tetramethyl-N-(trimethylsilyl)silanamine (ACI)
Di(trimethylsilyl)methylamine
Heptamethyldisilazane
N,N-Bis(trimethylsilyl)methylamine
1,1-bis(trimethylsilyl)methylamine
DTXSID00862468
Heptamethyl disilazane
1,1-Bis(trimethylsilyl)methanamine
D90981
N,1,1,1-Tetramethyl-n-(trmethylslyl)slanamne
Q17310956
N,N-bis(trimethylsilyl)methanamine
EN300-7645440
H0954
Silanamine, N-methyl-N-silyl-
N-[Bis(trimethylsilyl)methyl]amine
n,1,1,1-tetramethyl-n-(trimethylsilyl)silanamine

MDL Number

MFCD00008262

Customs Code

29319090

FAQ

What is Heptamethyldisilazane (CAS: 920-68-3)?

Heptamethyldisilazane is a chemical compound with the formula (CH3)2Si-N-Si(CH3)2. It is a colorless, volatile liquid with a strong, sweet odor. This compound is known for its low reactivity and high stability, making it useful in various industrial and research applications. It is commonly used as a coupling agent and as a moisture scavenger in chemical processes.

What are the main uses of Heptamethyldisilazane (CAS: 920-68-3)?

Heptamethyldisilazane is widely used in pharmaceuticals as a reagent for protecting groups and in the synthesis of silicon-based materials. In industry, it serves as a coupling agent in silicone manufacturing and as a moisture scavenger in polymer production. It is also employed in research for surface modification and as a stabilizer in organic reactions.

Is Heptamethyldisilazane (CAS: 920-68-3) safe?

Heptamethyldisilazane is generally considered safe when handled properly, but it should be used with caution. It is not classified as highly toxic, but inhalation or skin contact may cause irritation. Safety standards recommend using appropriate personal protective equipment, ensuring good ventilation, and following standard chemical handling protocols to minimize exposure risks.

How should Heptamethyldisilazane (CAS: 920-68-3) be stored?

Heptamethyldisilazane should be stored in a sealed, cool, and dry environment away from light. It is typically kept in airtight containers at temperatures below 25°C and humidity levels below 60%. Due to its volatility, it should be stored in a well-ventilated area and handled with care to prevent evaporation and contamination.