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440191

Sigma-Aldrich

Hexamethyldisilazane

reagent grade, ≥99%

Szinonimák:

Bis(trimethylsilyl)amine, HMDS

Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez
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About This Item

Lineáris képlet:
(CH3)3SiNHSi(CH3)3
CAS-szám:
999-97-3
Molekulatömeg:
161.39
Beilstein:
635752
EC-szám:
213-668-5
MDL-szám:
MFCD00008259
UNSPSC kód:
12352103
PubChem Substance ID:
24867576
NACRES:
NA.23

grade

reagent grade

Minőségi szint

300

Teszt

≥99%

form

liquid

törésmutató

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

Nemzetközi kémiai azonosító kulcs

FFUAGWLWBBFQJT-UHFFFAOYSA-N

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Általános leírás

Hexamethyldisilane (HMDS) is a stable and effectivereagent for trimethylsilylation of hydrogen-labile substrates such as alcohols,amines, and carboxylic acids. It is commonly used for the protection of sensitivefunctional groups during chemical synthesis. Owing to its low cost, high vapor pressure, and safety, itis widely used as a precursor in chemical vapor deposition(CVD) reactions.

Alkalmazás

Hexamethyldisilane (HMDS) can be used:
  • As a silylating agent in the trimethylsilylation of alcohols under nearly neutral reaction conditions.
  • To control the molecular weights of polypeptides during ring-opening polymerization of α-amino acid N-carboxyanhydrides.
  • To fabricate silicon carbonitride thin films by plasma-enhanced CVD.
  • For specimen preparation for scanning electron microscopy and the preparation of trimethylsilyl ethers from hydroxy compounds.

Tulajdonságok és előnyök

  • High chemicalstability and low molecular weight
  • Nontoxic andcost-effective reagent
  • Ammonia is theonly byproduct generated during silylation
  • Silylationreaction using HDMS is nearly neutral and does not need any precaution

Piktogramok

FlameSkull and crossbones
GHS02,GHS06

Figyelmeztetés

Danger

Figyelmeztető mondatok

H225,H302 + H332,H311,H412

Veszélyességi osztályok

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

Tárolási osztály kódja

3 - Flammable liquids

WGK

WGK 2

Lobbanási pont (F)

52.5 °F - closed cup

Lobbanási pont (C)

11.4 °C - closed cup

Egyéni védőeszköz

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

Válasszon a legfrissebb verziók közül:

Analitikai tanúsítványok (COA)

Lot/Batch Number
STBL0576
STBK6647
SHBQ2486
STBK9636
STBK9283

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COA keresése

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Dokumentumtár megtekintése

Rapid and highly efficient trimethylsilylation of alcohols and phenols
with hexamethyldisilazane (HMDS) catalysed by in situ generated I2
using OxoneR /KI or cerium ammonium nitrate (CAN)/KI systems
under mild conditions
Eskandar K, et al.
Journal of Chemical Sciences (Bangalore), 123(5), 703-708 (2011)
F Braet et al.
Journal of microscopy, 186(Pt 1), 84-87 (1997-04-01)
Critical point drying (CPD) is a common method of drying biological specimens for scanning electron microscopy (SEM). Drying by evaporation of hexamethyldisilazane (HMDS) has been described as a good alternative. This method, however, is infrequently used. Therefore, we reassessed HMDS
Judith J de Vries et al.
International journal of molecular sciences, 21(19) (2020-10-01)
Subjects with diabetes mellitus (DM) have an increased risk of arterial thrombosis, to which changes in clot structure and mechanics may contribute. Another contributing factor might be an increased formation of neutrophil extracellular traps (NETs) in DM. NETs are mainly
Clyde Savio Pinto et al.
Scientific reports, 9(1), 12191-12191 (2019-08-23)
Apical projections are integral functional units of epithelial cells. Microvilli and stereocilia are cylindrical apical projections that are formed of bundled actin. Microridges on the other hand, extend laterally, forming labyrinthine patterns on surfaces of various kinds of squamous epithelial
Ashang Luwang Laiva et al.
International journal of pharmaceutics, 483(1-2), 115-123 (2015-02-15)
Electrospun hybrid nanofibrous scaffolds have gained much importance in the field of tissue engineering and drug delivery applications owing to its multifaceted properties. In this study, the properties of composite polycaprolactone (PCL)/silk fibroin (SF) nanofibrous scaffolds was investigated as a
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