MilliporeSigma
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741442

Sigma-Aldrich

(3-Aminopropyl)triethoxysilane

≥98.0%

Synonym(s):
APTS, 3-Triethoxysilylpropylamine, APTES
Linear Formula:
H2N(CH2)3Si(OC2H5)3
CAS Number:
Molecular Weight:
221.37
Beilstein:
1754988
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Quality Level

assay

≥98.0%

form

liquid

color

APHA: ≤25

refractive index

n20/D 1.421

bp

217 °C/760 mmHg (lit.)

density

0.929 g/mL at 25 °C
0.946 g/mL at 25 °C (lit.)

SMILES string

CCO[Si](CCCN)(OCC)OCC

InChI

1S/C9H23NO3Si/c1-4-11-14(12-5-2,13-6-3)9-7-8-10/h4-10H2,1-3H3

InChI key

WYTZZXDRDKSJID-UHFFFAOYSA-N

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General description

(3-Aminopropyl)triethoxysilane (APTES) is an aminosilane that is majorly utilized in the chemical modification of a variety of surfaces such as alumina and silica. It can act as an adhesion promoter between the polymer and the substrate material. It can also be used in the immobilization of surface molecules. The attachment of APTES molecules with the atoms present on the surface happens through chemisorption which results in the formation of a self-assembled monolayer (SAM) on the substrate.[57][58]

Application

APTES can be used in a variety of applications such as an anti-corrosive coating,[59] surface treatment for biological applications,[60] and capping of surface atoms for diagnostic applications.[61]

Packaging

100, 500 mL in glass bottle

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

195.1 °F - closed cup

Flash Point(C)

90.6 °C - closed cup

Certificate of Analysis

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Certificate of Origin

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