3-Mercaptopropyl Trimethoxylsilane

For research use only. Not for therapeutic Use.

  • CAT Number: R033112
  • CAS Number: 4420-74-0
  • Molecular Formula: C6H16O3SSi
  • Molecular Weight: 196.34
  • Purity: ≥95%
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3-Mercaptopropyl Trimethoxysilane (CAT: R033112) is a versatile organosilane coupling agent featuring a reactive thiol (-SH) group and hydrolyzable trimethoxysilane moiety. It is widely used for surface modification of inorganic materials such as silica, glass, and metal oxides, enhancing adhesion and compatibility in composite materials, sealants, and coatings. The thiol group offers strong reactivity with metals and polymers, making MPTMS ideal for forming self-assembled monolayers, corrosion-resistant layers, and functionalized nanoparticles. Common in materials science, electronics, and biomedical research, MPTMS enables robust interface engineering in both organic and inorganic systems.


CAS Number 4420-74-0
Synonyms

3-(Trimethoxysilyl)-1-propanethiol; (3-Mercaptopropyl)trimethoxysilane; (3-Thiopropyl)trimethoxysilane; (γ-Mercaptopropyl)trimethoxysilane; 3-(Sulfanylpropyl)trimethoxysilane; 3-(Trimethoxysilyl)propanethiol; 3-(Trimethoxysilyl)propyl Mercaptan; 3-MP

Molecular Formula C6H16O3SSi
Purity ≥95%
Storage -20°C
IUPAC Name 3-trimethoxysilylpropane-1-thiol
InChI InChI=1S/C6H16O3SSi/c1-7-11(8-2,9-3)6-4-5-10/h10H,4-6H2,1-3H3
InChIKey UUEWCQRISZBELL-UHFFFAOYSA-N
SMILES CO[Si](CCCS)(OC)OC
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