Hexamethyldisilazane, 98+%, Thermo Scientific™

Product Code	Brand	Quantity
11492108	Thermo Scientific Alfa Aesar A15139.AE	100mL
11402118	Thermo Scientific Alfa Aesar A15139.AP	500mL
11412118	Thermo Scientific Alfa Aesar A15139.0F	2500mL

Description

This Thermo Scientific brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific.

Applications
Hexamethyldisilazane is used as a solvent in organic synthesis and organometallic chemistry. It is often used as an adhesion promoter for photoresist in photolithography. Further, it is used for the preparation of trimethylsilyl ethers from hydroxy compounds. It is used as an alternative to critical point drying during sample preparation in electron microscopy. It is added to analyte to get silylated diagnostic products during pyrolysis in gas chromatography- mass spectrometry.

Solubility
Miscible with methanol, chloroform, ethyl ether and benzene. Immiscible with water.                    

Notes
Incompatible with strong oxidizing agents and strong acids.  

Chemical Identifiers

• CAS: 999-97-3
• Molecular Weight (g/mol): 161.395
• InChI Key: FFUAGWLWBBFQJT-UHFFFAOYSA-N
• PubChem CID: 13838
• IUPAC Name: [dimethyl-(trimethylsilylamino)silyl]methane

• Molecular Formula: C6H19NSi2
• MDL Number: MFCD00008259
• Synonym: hexamethyldisilazane, bis trimethylsilyl amine, hmds, 1,1,1,3,3,3-hexamethyldisilazane, hexamethylsilazane, silanamine, 1,1,1-trimethyl-n-trimethylsilyl, tri-sil, 1,1,1-trimethyl-n-trimethylsilyl silanamine, hexamethyldisilizane, disilazane, 1,1,1,3,3,3-hexamethyl
• ChEBI: CHEBI:85068
• SMILES: C[Si](C)(C)N[Si](C)(C)C

Specifications

• Chemical Name or Material: Hexamethyldisilazane
• Density: 0.774
• Boiling Point: 126°C
• Assay Percent Range: 98+%
• Linear Formula: (CH₃)₃SiNHSi(CH₃)₃
• Odor: Odorless
• Beilstein: 635752
• Refractive Index: 1.408
• Quantity: 100mL
• Sensitivity: Moisture sensitive
• SMILES: C[Si](C)(C)N[Si](C)(C)C
• Molecular Weight (g/mol): 161.395
• ChEBI: CHEBI:85068
• Physical Form: Liquid

• CAS: 999-97-3
• Melting Point: -78°C
• Flash Point: 8°C (46°F)
• Molecular Formula: C6H19NSi2
• MDL Number: MFCD00008259
• UN Number: UN number : 1992
• Merck Index: 14,4689
• Synonym: hexamethyldisilazane, bis trimethylsilyl amine, hmds, 1,1,1,3,3,3-hexamethyldisilazane, hexamethylsilazane, silanamine, 1,1,1-trimethyl-n-trimethylsilyl, tri-sil, 1,1,1-trimethyl-n-trimethylsilyl silanamine, hexamethyldisilizane, disilazane, 1,1,1,3,3,3-hexamethyl
• Solubility Information: Miscible with methanol,chloroform,ethyl ether and benzene. Immiscible with water.
• InChI Key: FFUAGWLWBBFQJT-UHFFFAOYSA-N
• IUPAC Name: [dimethyl-(trimethylsilylamino)silyl]methane
• PubChem CID: 13838
• Formula Weight: 161.4
• Percent Purity: ≥98%

RUO – Research Use Only