Liquid dosing
Pumpable, so it suits liquid feed systems and avoids powder handling.
DTDTP Liquid Thioester Antioxidant Supplier
SUNNOX® DTDTP (ditridecyl thiodipropionate) is a liquid thioester secondary antioxidant. It gives the heat-aging synergy of DLTDP in a pourable form for ABS, polyolefins, adhesives and lubricants.
CAS 10595-72-9 · Thioester · Liquid secondary antioxidant
Product Overview
DTDTP works like other thioesters: it decomposes hydroperoxides and boosts long-term heat stability when used with a hindered phenolic antioxidant. Being liquid, it is easy to meter into liquid systems, masterbatch lines and compounding with liquid dosing.
Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.
Key Benefits
Heat-aging synergy
Extends long-term heat stability together with a phenolic antioxidant.
Good compatibility
Branched alkyl chains give good compatibility in ABS, polyolefins and oils.
Technical Specifications
Typical specification. Every shipment is supplied with a batch COA; the limits that apply to your order are confirmed in the quotation and contract.
| Parameter | Typical value |
|---|---|
| Product Name | Antioxidant DTDTP |
| Brand | SUNNOX® DTDTP |
| CAS No. | 10595-72-9 |
| Chemical Name | Ditridecyl 3,3'-thiodipropionate |
| Molecular Formula | C32H62O4S |
| Molecular Weight | 542.9 |
| Appearance | Clear, colorless to light-yellow liquid |
Applications by Polymer
Pick an application to see how DTDTP is normally used and what to confirm before your trial.
ABS & Styrenics
Used with a phenolic antioxidant to improve heat-aging of ABS where a liquid additive is easier to dose.
What to confirm for your application
- Grade and dosing method
- Service temperature
- Color target
Polyolefins
Heat-aging synergist for PP and PE where liquid injection is used.
What to confirm for your application
- Resin grade and process (film, fiber, molding, pipe)
- Processing temperature and number of passes
- Current antioxidant package and dosage
Adhesives & Lubricants
Antioxidant synergist for adhesives, lubricants and greases.
What to confirm for your application
- Base oil or polymer
- Operating temperature
- Existing antioxidant package
Packaging & Storage
Packaging
Typically 25 kg pails or 200 kg drums; IBC on request. Confirm the pack in the quotation.
Storage
Keep containers closed, away from heat and direct sun. Warm gently and mix before use if the liquid has thickened in cold weather. See the SDS.
Lead time & terms
Typically 3–15 business days from order confirmation, depending on quantity. FOB, CIF or DAP to major ports.
Technical & Buying Information
Antioxidant DTDTP Buyer Guide
Name the failure you want to prevent
Yellowing or melt-flow change during processing points to the phosphite share; embrittlement or cracking after months in service points to the phenolic and thioester share. Note recycled content and the number of extrusion passes.
Start from a proven blend
Most polyolefin packages start from a phenolic primary plus a phosphite secondary, then adjust. Send your current package and we suggest a starting blend for the trial instead of changing several variables at once.
Compare the numbers that matter
For powders: assay, melting range, volatiles and light transmittance at 425/500 nm (a direct read on color). Ask for the same parameters on our COA that appear on your incoming-inspection sheet.
Lock in supply terms
Agree packaging, monthly volume, destination port and required documents up front. A matching CAS number alone does not qualify a new source; run your trial and keep the approved lot COA as the reference.
Request a Quotation for Antioxidant DTDTP
Start with your polymer, quantity and destination. Add your current grade or specification and we will quote against it.
| Information | Example |
|---|---|
| Polymer / Material | PP, PE, ABS, compound, masterbatch |
| Application | Injection molding, extrusion, film, fiber |
| Current additive | Grade or supplier you use today |
| Required specification | Your TDS, COA or key limits |
| Quantity | Trial order / monthly / annual volume |
| Packaging | Standard 25 kg or specific requirement |
| Destination | Country and port |
| Documents needed | COA, SDS, REACH, food-contact statement |
Related Antioxidants
SUNNOX® DLTDP
Thioester secondary antioxidant that boosts long-term heat aging when used with a phenolic.
View product →SUNNOX® DSTDP
Higher-melting thioester synergist with lower volatility for long-term heat aging.
View product →SUNNOX® 1010
High-MW hindered phenolic primary antioxidant for long-term thermal protection with low volatility.
View product →SUNNOX® 1520
Liquid multifunctional phenolic antioxidant for elastomers, adhesives and lubricants.
View product →Antioxidant DTDTP FAQ
Why choose DTDTP over DLTDP?
Mainly for handling: DTDTP is liquid, so it suits liquid dosing and liquid formulations. Performance as a heat-aging synergist is similar.
Does it need a phenolic antioxidant?
Yes. Like other thioesters it works best with a hindered phenol such as 1010 or 1076.
Which parameters should I check on the COA?
Appearance and color, acid value and assay. Tell us your incoming limits and we quote against them.
Can I get a sample before ordering?
Yes. Tell us the polymer, the test you plan to run and the quantity you need. Samples ship with a COA so you can compare the lot against your current material.
What if a COA does not match our agreed specification?
Send us the agreed specification and the COA showing the difference (parameter, unit and test method). We check it with the production batch record before you accept the material, and replace or re-test where the lot is out of specification.
Discuss Your Antioxidant DTDTP Requirements
Send your application, specification and quantity to request a quotation or supporting documents.