175617

(3-Mercaptopropyl)trimethoxysilane

95%

• Synonym(s): 3-(Trimethoxysilyl)-1-propanethiol
• Linear Formula: HS(CH₂)₃Si(OCH₃)₃
• CAS Number: 4420-74-0
• Molecular Weight: 196.34
• Beilstein/REAXYS Number: 2038119
• EC Number: 224-588-5
• MDL number: MFCD00004901
• UNSPSC Code: 12352103
• PubChem Substance ID: 24850516
• NACRES: NA.23

Properties

• assay: 95%
• form: liquid
• refractive index: n20/D 1.444 (lit.)
• bp: 213-215 °C (lit.)
• density: 1.057 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: CO[Si](CCCS)(OC)OC
• InChI: 1S/C6H16O3SSi/c1-7-11(8-2,9-3)6-4-5-10/h10H,4-6H2,1-3H3
• InChI key: UUEWCQRISZBELL-UHFFFAOYSA-N

Description

General description

(3-Mercaptopropyl) trimethoxysilane (MPS) is predominantly used as a precursor for silica.

(3-mercaptopropyl)trimethoxysilane (MPTMS) is an organosilane with a thiol group, which can be used as a self-assembled monolayer (SAM). It can be used as a conjunction reagent to immobilize a variety of nanoparticles.[1][2]

Application

MPTMS can be coated with TiO₂, CeO₂ and La₂O₃ for protection against corrosion on quaternary bronze in urban atmosphere.[3] It can also be used as a silica nanofluid (NF) to modify the surface of berea sandstone to improve the enhanced oil recovery (EOR) area in the petroleum industry.[1] MPTMS forms composites with kaolin, that can be used as an absorbent for the removal of heavy metals from wastewater.[4] MPTMS can form a bilayer with multiwalled carbon nanotubes (MWNTs) on gold electrodes which can be used to study the electrochemical properties of fluphenazine.[2]

Safety Information

• pictograms: GHS07,GHS09
• signalword: Warning
• hcodes: H302,H317,H411
• pcodes: P261 - P264 - P273 - P280 - P301 + P312 - P302 + P352
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Chronic 2 - Skin Sens. 1
• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 2
• flash_point_f: 204.8 °F - closed cup
• flash_point_c: 96 °C - closed cup
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter