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Safety Information

379212

Sigma-Aldrich

Hexamethyldisilazane

ReagentPlus®, 99.9%

Synonym(s):

1,1,1,3,3,3-Hexamethyldisilazane, HMDS

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About This Item

Linear Formula:
(CH3)3SiNHSi(CH3)3
CAS Number:
999-97-3
Molecular Weight:
161.39
Beilstein:
635752
EC Number:
213-668-5
MDL number:
MFCD00008259
UNSPSC Code:
12352103
PubChem Substance ID:
24863226
NACRES:
NA.23

Quality Level

200

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. It is also used as a sol-gel precursor to fabricate thin films for semiconductor devices.

Application

Hexamethyldisilazane can be used:
  • As a precursor to fabricate multilayer quantum dot light-emitting diodes.
  • To modify dielectric surfaces of organic thin film transistors.
  • To fabricate superhydrophobic coatings on epoxy resins.
  • For the silylation of alcohols and phenols.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

FlameSkull and crossbones
GHS02,GHS06

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

Regulatory Information

危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number
SHBM6136
SHBJ6186
SHBH7587
SHBG6192V
SHBF8354V

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G Chiavari et al.
Journal of chromatography. A, 922(1-2), 235-241 (2001-08-07)
Alpha-amino acids were pyrolysed at 600 degrees C in the presence of hexamethyldisilazane (HMDS) and the formed volatile products were analysed on line by gas chromatography-mass spectrometry (GC-MS). Glycine, alanine, valine, leucine, isoleucine, norleucine, methionine, phenylalanine yielded principally the trimethylsilyl
A simple and efficient room temperature silylation of diverse functional groups with hexamethyldisilazane using CeO2 nanoparticles as solid catalysts
Nagaraj Anbu, et al
Molecular Catalysis, 474, 110357-110357 (2019)
High performance organic thin film transistors using chemically modified bottom contacts and dielectric surfaces
Organic Electronics, 15, 2073-2078 (2014)
Joachim C Burbiel et al.
Beilstein journal of organic chemistry, 2, 20-20 (2006-10-28)
Poly-substituted xanthine derivatives are an important class of compounds in medicinal chemistry. Substitution at the 8-position of the purine ring is generally accessible by ring closure of a carboxamido-substituted uracil precursor. Although several procedures to accomplish this synthetic step have
Hexamethyldisilazane-mediated full-solution-processed inverted quantum dot-light-emitting diodes
Yan Fu, et al.
Journal of Materials Chemistry, 5, 522-526 (2017)
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