Molekula
3,3-Dithiodipropionic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
3,3-Dithiodipropionic acid is an organic compound featuring a disulfide bond, primarily used in polymer chemistry as a crosslinking agent, in the synthesis of biodegradable materials, and as a precursor for sulfur-containing pharmaceutical intermediates. It appears as a white to off-white crystalline solid with a faint odor. Catalogue details: CAS 1119-62-6, molecular formula C6H10O4S2, molecular weight 210.27 g/mol, stable under ambient conditions.
Molekula supplies 3,3-Dithiodipropionic acid at >98% purity in 25 g and 100 g packs, from $56.10 excl. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 7 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
In stock — same-day dispatch
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — $56.10 per pack
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100 g — $109.10 per pack
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 crystal |
| Melting Point | 155 - 158 Deg C |
| Assay GC | >98% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 70998749 |
| CAS Number | 1119-62-6 |
| IUPAC Name | 3-(2-carboxyethyldisulfanyl)propanoic acid |
| EC Number | 214-284-0 |
| Molecular Formula | C6H10O4S2 |
| Molecular Weight | 210.27 |
| Exact Mass | 210.0021 |
| SMILES | C(CSSCCC(=O)O)C(=O)O |
| InChIKey | YCLSOMLVSHPPFV-UHFFFAOYSA-N |
| InChI | InChI=1S/C6H10O4S2/c7-5(8)1-3-11-12-4-2-6(9)10/h1-4H2,(H,7,8)(H,9,10) |
| PubChem CID | 95116 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29309049 |
| Tariff Code | 2930909599 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P271 Use only outdoors or in a well-ventilated area
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, English (US), 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
- .beta.,.beta.'-Dithiodipropionic acid
- 2-Carboxyethyl disulfide
- 3,3'-Dithiobis(dipropionic acid)
- 3,3'-Dithiobispropionic acid
- 3,3'-Dithiodipropanoic acid
- Bis(2-carboxyethyl)disulfide
- Dithiodipropionic acid
- DTDPA
- Propanoic acid, 3,3'-dithiobis-
- Propionic acid, 3,3'-dithiodi-
Frequently asked questions
What is 3,3-Dithiodipropionic acid commonly used for?
It is primarily used as a crosslinking agent in polymer chemistry, particularly in the synthesis of rubber and elastomers, and as a precursor for dithiols in organic synthesis.
What is the chemical formula and molecular weight of 3,3-Dithiodipropionic acid?
The formula is C₆H₁₀O₄S₂, and the molecular weight is 210.27 g/mol.
How should 3,3-Dithiodipropionic acid be stored?
Store in a cool, dry place at ambient temperature, away from direct sunlight and incompatible materials (e.g., strong oxidizers).
What purity grades are available for this product?
Molekula supplies this product with an assay (GC) of greater than 98%. Confirm your specific needs when ordering.
Can Molekula supply 3,3-Dithiodipropionic acid in bulk quantities?
Yes, we offer bulk packaging options (e.g., 5 kg, 25 kg, or custom quantities) for industrial and research-scale applications.
What documentation is provided with an order of 3,3-Dithiodipropionic acid?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and batch-specific documentation for traceability.
Where can I buy 3,3-Dithiodipropionic acid?
Directly from Molekula, which lists 3,3-Dithiodipropionic acid in 25 g and 100 g packs from $56.10 excl. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.