Merck
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379212

Sigma-Aldrich

Hexamethyldisilazane

ReagentPlus®, 99.9%

Synonym(s):
1,1,1,3,3,3-Hexamethyldisilazane, HMDS
Linear Formula:
(CH3)3SiNHSi(CH3)3
CAS Number:
Molecular Weight:
161.39
Beilstein:
635752
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

product line

ReagentPlus®

assay

99.9%

form

liquid

refractive index

n20/D 1.407 (lit.)

bp

125 °C (lit.)

SMILES string

C[Si](C)(C)N[Si](C)(C)C

InChI

1S/C6H19NSi2/c1-8(2,3)7-9(4,5)6/h7H,1-6H3

InChI key

FFUAGWLWBBFQJT-UHFFFAOYSA-N

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General description

Hexamethyldisilazane (HDMS) is an organoslicon compound.HDMS is a colorless liquid used as a reagent and precursor in organic synthesis and organometallic chemistry.

Application

Used in
  • condensation reactions of heterocyclic compounds, such as derivatives of xanthine
  • adhesion promoter for photoresist in photolithography
  • electron microscopy, as an alternative to critical point drying during sample preparation
  • pyrolysis-gas chromatography-mass spectrometry, in order to enhance detectability of compounds with polar functional groups.

Packaging

25, 100 mL in Sure/Seal™

Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Pictograms

FlameSkull and crossbones

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 3 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

52.5 °F - closed cup

Flash Point(C)

11.4 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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