Dimethyl 3,3′-thiodipropionate
Dimethyl 3,3′-thiodipropionate (CAS 4131-74-2) is an organic ester with the linear formula S(CH2CH2CO2CH3)2 and a molecular weight of 206.26 g/mol. It is a versatile chemical building block utilised in various synthesis applications. This compound is recognised for its ester functionality and thioether linkage, making it a useful intermediate in organic chemistry research and development.
- IUPAC
- 3,3′-Thiodipropionic acid dimethyl ester
- Synonyms
- 3,3′-Thiodipropionic acid dimethyl esterS(CH2CH2CO2CH3)2

Organic Synthesis Intermediate
Dimethyl 3,3′-thiodipropionate serves as a key intermediate in the synthesis of more complex organic molecules. Its functional groups allow for various chemical transformations, contributing to its utility in research laboratories.
Building Block for Specialty Chemicals
As a compound within the C8 to C9 carbon range, it is employed as a building block for the creation of specialty chemicals. Its structure can be incorporated into polymers or other advanced materials.
Research and Development
This ester is frequently used in R&D settings for exploring new synthetic pathways and developing novel compounds. Its well-defined structure and reactivity make it suitable for experimental chemistry.
| Molecular weight | 206.26 |
|---|---|
| Linear formula | S(CH2CH2CO2CH3)2 |
| Assay | 99% |
| Boiling point | 148 °C/18 mmHg(lit.) |
| Density | 1.198 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.475(lit.) |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 3334 |
| Water hazard class (WGK, DE) | 3 |
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 Dimethyl 3,3′-thiodipropionate used for?
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Dimethyl 3,3′-thiodipropionate is primarily used as a building block and intermediate in organic synthesis and research and development, contributing to the creation of more complex organic molecules and specialty chemicals.
What are the CAS number and formula for Dimethyl 3,3′-thiodipropionate?
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The CAS number for Dimethyl 3,3′-thiodipropionate is 4131-74-2. The linear formula is S(CH2CH2CO2CH3)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Dimethyl 3,3′-thiodipropionate with an assay of 99%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety and handling precautions for Dimethyl 3,3′-thiodipropionate?
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Safety precautions include wearing eyeshields and gloves. It has a flash point greater than 110 °C (230 °F). WGK Germany is 3. Refer to the Safety Data Sheet for comprehensive handling and hazard information.
How is Dimethyl 3,3′-thiodipropionate packed, shipped, and exported?
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Tech Serve Solutions ensures professional packaging suitable for chemical products, adhering to international shipping regulations for export. Specific packaging details can be provided upon request.
How can I request a quote or sample for Dimethyl 3,3′-thiodipropionate?
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To request a quote or sample, please contact our sales department via the website or provide your details through the product inquiry form. Our team will respond promptly.
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