(3-Mercaptopropyl)methyldimethoxysilane
(3-Mercaptopropyl)methyldimethoxysilane (CAS: 31001-77-1; Formula: CH3Si(OCH3)2CH2CH2CH2SH) is an organosilicon compound with a molecular weight of 180.34 g/mol. This liquid reagent is characterised by the presence of both methoxy and thiol functional groups. Its versatile structure makes it valuable in chemical synthesis, particularly for surface modification and the preparation of specialised polymers and materials. It is supplied by Tech Serve Solutions with an assay of ≥95.0%.
- IUPAC
- Dimethoxy-(3-mercaptopropyl)methylsilane
Surface Modification Agent
This silane can be used to functionalise surfaces, introducing thiol groups for further chemical reactions or to alter surface properties such as adhesion and wettability.
Crosslinking Agent in Polymer Synthesis
The dual functionality allows it to act as a crosslinker, contributing to the development of advanced polymer networks with tailored mechanical and chemical resistance properties.
Intermediate in Organic Synthesis
It serves as a building block in the synthesis of more complex organic molecules and specialty chemicals, leveraging the reactivity of its thiol and silane moieties.
| Molecular weight | 180.34 |
|---|---|
| Linear formula | CH3Si(OCH3)2CH2CH2CH2SH |
| Assay | ≥95.0% |
| Form | liquid |
| Boiling point | 96 °C/30 mmHg(lit.) |
| Density | 1 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.45(lit.)n20/D 1.450 |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 93 °C / 199.4 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is (3-Mercaptopropyl)methyldimethoxysilane used for?
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(3-Mercaptopropyl)methyldimethoxysilane is primarily used in chemical synthesis for surface modification and as an intermediate in the preparation of specialised polymers and materials.
What are the CAS number and formula for (3-Mercaptopropyl)methyldimethoxysilane?
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The CAS number is 31001-77-1 and the linear formula is CH3Si(OCH3)2CH2CH2CH2SH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (3-Mercaptopropyl)methyldimethoxysilane with an assay of ≥95.0%. This product is intended for laboratory and chemical synthesis use and is not represented as USP, BP, EP, or other pharmacopoeia grades.
How should (3-Mercaptopropyl)methyldimethoxysilane be handled safely?
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This compound is a Warning substance (GHS07) that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Always use appropriate personal protective equipment, including eyeshields, gloves, and a suitable respirator, and ensure adequate ventilation. Avoid breathing vapours.
How is (3-Mercaptopropyl)methyldimethoxysilane packed, shipped, and exported?
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Tech Serve Solutions ensures secure packaging suitable for international transport of chemicals. This material is shipped as a non-hazardous material under NA 1993, PGIII regulations.
How can I request a sample or quote for (3-Mercaptopropyl)methyldimethoxysilane?
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To request a sample or a quote, please use the 'Contact Us' form on our website or contact our sales department directly with your requirements.
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