Molekula
3,3-Thiodipropionic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
3,3-Thiodipropionic acid is a sulfur-containing organic compound used in the synthesis of polymers, pharmaceuticals, and specialty chemicals. It also serves as an antioxidant and stabilizer for ethylene polymers, soap products and edible fats and oils, and is used in plasticizer and lubricant formulations. It functions as a bifunctional monomer due to its two carboxylic acid groups and a thioether linkage. Available in powder form, it has a molecular weight of 178.2062 g/mol, a molecular formula of C6H10O4S, and a CAS number of 111-17-1. Store at ambient temperature. Signal word: Warning. Molekula supplies 3,3-Thiodipropionic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white solid |
| Assay | >99% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 128 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 134 °C |
| Vapour Pressure | 0.0000143 mmHg |
Source: PubChem CID 8096 (HSDB, Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 82848469 |
| CAS Number | 111-17-1 |
| IUPAC Name | 3-(2-carboxyethylsulfanyl)propanoic acid |
| EC Number | 203-841-3 |
| Molecular Formula | C6H10O4S |
| Molecular Weight | 178.2062 |
| Exact Mass | 178.03 |
| SMILES | C(CSCCC(=O)O)C(=O)O |
| InChIKey | ODJQKYXPKWQWNK-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H10O4S/c7-5(8)1-3-11-4-2-6(9)10/h1-4H2,(H,7,8)(H,9,10) |
| PubChem CID | 8096 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2930.90.4950 |
| Tariff Code | 2930909540 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- H319 Causes serious eye irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 3,3'-Thiobis(propanoic acid)
- 4-Thiaheptanedioic acid
- Bis(2-carboxyethyl) sulfide
- Propanoic acid, 3,3'-thiobis-
- Sulfide, bis(2-carboxyethyl)
- TDPA
- Thiahydracrylic acid
- Thiodihydracrylic acid
- THIODIPROPIONIC ACID
- Tyox A
Frequently asked questions
What is 3,3-Thiodipropionic acid used for?
It is primarily used as a chemical intermediate in the synthesis of polymers and pharmaceuticals.
What is the chemical formula and molecular weight of 3,3-Thiodipropionic acid?
The formula is C6H10O4S with a molecular weight of 178.2062 g/mol.
How should 3,3-Thiodipropionic acid be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade is available for 3,3-Thiodipropionic acid?
Available in technical grade; custom purity options may be available upon request.
Can Molekula supply 3,3-Thiodipropionic acid in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with an order of 3,3-Thiodipropionic acid?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.