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Merck

52619

Hexaméthyldisilazane

derivatization grade (GC derivatization), LiChropur™, ≥99.0% (GC)

Synonyme(s) :

HMDS

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A propos de cet article

Formule linéaire :
(CH3)3SiNHSi(CH3)3
Numéro CAS:
999-97-3
Poids moléculaire :
161.39
UNSPSC Code:
12352200
NACRES:
NA.22
PubChem Substance ID:
329757861
EC Number:
213-668-5
Beilstein/REAXYS Number:
635752
MDL number:
MFCD00008259

Principaux documents

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InChI key

FFUAGWLWBBFQJT-UHFFFAOYSA-N

InChI

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

SMILES string

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

grade

derivatization grade (GC derivatization)

assay

≥99.0% (GC)

form

liquid

quality

LiChropur™

reaction suitability

reagent type: derivatization reagent
reaction type: Silylations

technique(s)

gas chromatography (GC): suitable

refractive index

n20/D 1.407 (lit.), n20/D 1.408

bp

125 °C (lit.)

Quality Level

100

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Catégories apparentées

General description

Hexamethyldisilazane (HMDS) is a commercially available, silylating agent, which is used as an alternative for the preparation of silyl ethers from hydroxyl compounds.

Application

Learn more in the Product Information
Hexamethyldisilazane is suitable for the derivatization of alcohols, U-aminobutyric acid, pesticidal carbamates and urea, 3,4-Dihydroxyphenylglycol, 4-hydroxycoumarins, hydroxyfatty acids, n-hydroxy-2-fluorenylacetamide, kerb cycle acid, malonaldehyde, monoglycerides, phenylpyruvic acid, shikimic acid, unsaturated fatty acid esters (or methyl esters), and related compounds.

It may be used as a derivatizing reagent for the analysis of bioamines and their acidic metabolites, phenol, hydroquinone and catechol in urine samples, mixtures of free fatty acids and metal soaps in paint samples using gas chromatography/mass spectrometry (GC/MS).
Suitable for the derivatization of alcohols, Υ-aminobutyric acid, pesticidal carbamates and urea, 3,4-Dihydroxyphenylglycol, 4-hydroxycoumarins, hydroxyfatty acids, n-hydroxy-2-fluorenylacetamide, kerb cycle acid, malonaldehyde, monoglycerides, phenylpyruvic acid, shikimic acid, unsaturated fatty acid esters (or methyl esters), and related compounds.

Features and Benefits

  • HMDS is inexpensive and has a relatively low boiling point (124-127 °C).        
  • It can be used without solvent but its silylating power can be increased by various (mostly acidic) catalysts.        
  • The only reaction byproduct, ammonia, can leave the reaction mixture as the reaction goes to completion.

Other Notes

Agent de silylation important
Reagent for 2-hydroxypyrimidine, polytrimethylsilyloxy, trimethylsilyl and trimethylsilyl oximes.

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

FlameSkull and crossbones
GHS02,GHS06

signalword

Danger

Hazard Classifications

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

Classe de stockage

3 - Flammable liquids

wgk

WGK 2

flash_point_f

52.5 °F - closed cup

flash_point_c

11.4 °C - closed cup

ppe

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

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Certificats d'analyse (COA)

Lot/Batch Number
BCCM7265
BCCK7506
BCCJ0766
BCCG3738
BCCF4725

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Consulter la Bibliothèque de documents

Comprehensive profiling analysis of bioamines and their acidic metabolites in human urine by gas chromatography/mass spectrometry combined with selective derivatization
Park H-N, et al.
Journal of Chromatography A, 1305, 234-243 (2013)
Oxide-based Systems at the Crossroads of Chemistry (2001)
Rapid and highly efficient trimethylsilylation of alcohols and phenols with hexamethyldisilazane (HMDS) catalyzed by reusable zirconyl triflate,[ZrO (OTf) 2]
Moghadam M, et al.
Journal of Organometallic Chemistry, 693(11), 2041-2046 (2008)
Tania Limongi et al.
Biomedical materials (Bristol, England) (2020-11-14)
Generation of artifical vascular grafts (TEVG) as blood vessel substitutes is a primary challenge in biomaterial and tissue engineering research. Ideally, these grafts should be able to recapitulate physiological and mechanical properties of natural vessels and guide the assembly of
Silylation of Organic Compounds
unpublished, 72-72 (1968)
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