Didodecyl 3,3′-thiodipropionate
Didodecyl 3,3′-thiodipropionate (CAS: 123-28-4) is a chemical compound with the linear formula S[CH₂CH₂CO₂(CH₂)₁₁CH₃]₂ and a molecular weight of 514.84 g/mol. It functions primarily as a polymer additive, particularly a heat stabilizer and antioxidant. Its lipophilic nature makes it suitable for use in various polymer systems to enhance thermal stability and prevent degradation during processing and use.
- IUPAC
- Thiodipropionic acid dilauryl ester
- Synonyms
- Thiodipropionic acid dilauryl esterDidodecyl thiodipropionate
![Didodecyl 3,3′-thiodipropionate (S[CH2CH2CO2(CH2)11CH3]2) — chemical structure, CAS 123-28-4; Life Science, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F123-28-4.png&w=3840&q=75)
Polymer Stabilisation
Didodecyl 3,3′-thiodipropionate acts as a secondary antioxidant and heat stabiliser for polymers. It functions by decomposing hydroperoxides, thereby preventing chain scission and cross-linking during thermal processing and extending the service life of polymeric materials.
Lubricant Additive
This thiodipropionate ester may be employed as an additive in lubricant formulations. Its structure can contribute to improving the thermal and oxidative stability of base oils, helping to maintain lubricant performance under demanding conditions.
Plasticiser Component
In certain polymer applications, Didodecyl 3,3′-thiodipropionate can function as a plasticiser or a component thereof. Its long alkyl chains contribute to flexibility and processability in rigid polymer matrices.
| Molecular weight | 514.84 |
|---|---|
| Linear formula | S[CH2CH2CO2(CH2)11CH3]2 |
| Assay | >97% |
| Density | 0.915 g/mL at 25 °C(lit.) |
| Vapour pressure | 0.2 mmHg (163 °C) |
| Melting point | 40-42 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Flash point | 113 °C / 235.4 °F |
| Water hazard class (WGK, DE) | 1 |
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 Didodecyl 3,3′-thiodipropionate used for?
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Didodecyl 3,3′-thiodipropionate is primarily used as a heat stabiliser and antioxidant in polymer applications. It can also find use as a lubricant additive and a component in plasticiser formulations.
What are the CAS number and formula for Didodecyl 3,3′-thiodipropionate?
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The CAS number for Didodecyl 3,3′-thiodipropionate is 123-28-4. Its linear formula is S[CH₂CH₂CO₂(CH₂)₁₁CH₃]₂.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Didodecyl 3,3′-thiodipropionate with an assay of >97%. This is a technical grade, and TSS does not represent it as USP, BP, EP, or pharmacopoeia grade.
How should Didodecyl 3,3′-thiodipropionate be handled safely?
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Safe handling requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if airborne exposure is possible. Refer to the Safety Data Sheet for comprehensive guidelines.
How is Didodecyl 3,3′-thiodipropionate packed, shipped, and exported?
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Tech Serve Solutions expertly handles the packing, shipping, and global export of chemicals. We adhere to all relevant regulations to ensure safe and compliant delivery worldwide.
How can I request a quote or sample of Didodecyl 3,3′-thiodipropionate?
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To request a quote or sample, please contact our sales team through the website or by calling our office. We are ready to assist with your requirements.
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