(3-Aminopropyl)triethoxysilane ≥98%, Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
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Synonyms: 3-Aminopropyltriethoxysilane, 3-(Triethoxysilyl)propylamine, Geniosil GF 93, Triethoxy(3-aminopropyl)silane

M-Clarity™ quality level = MQ200

A3648-100ML A3648-500ML
A3648-100MLEA 64.5 GBP
A3648-100ML A3648-500ML
(3-Aminopropyl)triethoxysilane ≥98%, Sigma-Aldrich®
(3-Aminopropyl)triethoxysilane

(3-Aminopropyl)triethoxysilane forms aminopropyl derivative of glass, an adsorbent for affinity chromatography. It is used to prepare positively charged slides suitable for use with various immunohistochemical and in situ hybridisation procedures.


  • (3-Aminopropyl)triethoxysilane has been used for the preparation of cadherin surfaces on glass slides
  • It has been used for the preparation of RGD (Arg-Gly-Asp)-treated silicone membranes
  • It has been used for the preparation of the avidin–biotin coverslips

Formula: H₂NCH₂CH₂CH₂Si(OCH₂CH₃)₃
MW: 221.37 g/mol
Boiling Pt: 217 °C (1013 hPa)
Melting Pt: 220...222 °C
Density: 0.95 g/cm³ (20 °C)
Flash Pt: 93 °C (closed cup)
Storage Temperature: Room Temperature
MDL Number: MFCD00008207
CAS Number: 919-30-2
EINECS: 213-048-4
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Specification Test Results

Appearance (Colour) Colorless to Very Faint Yellow
Appearance (Form) Liquid
Appearance (Turbidity) Clear
Proton NMR Spectrum Conforms to Structure
Titration by HClO₄ ≥98%
Recommended Retest Period 2 years

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