Molekula
2,3-Dimercapto-1-propanesulfonic acid sodium salt 98% min
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
2,3-Dimercapto-1-propanesulfonic acid sodium salt (DMPS) is a chelating agent primarily used in medicine and research to treat heavy metal poisoning, such as arsenic, mercury, or lead toxicity. It binds metals to facilitate their excretion and is also employed in analytical chemistry for metal ion detection. This product meets a minimum purity of 98%, with a CAS number of 4076-02-2 and molecular formula C3H7NaO3S3 (molecular weight 210.16). Store between 2–8°C. The signal word is *Warning* due to moderate hazard risks. Molekula supplies 2,3-Dimercapto-1-propanesulfonic acid sodium salt 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.
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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.
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Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90027758 |
| CAS Number | 4076-02-2 |
| IUPAC Name | sodium 2,3-bis(sulfanyl)propane-1-sulfonate |
| EC Number | 223-796-3 |
| Molecular Formula | C3H7NaO3S3 |
| Molecular Weight | 210.16 |
| Exact Mass | 209.9455 |
| SMILES | C(C(CS(=O)(=O)[O-])S)S.[Na+] |
| InChIKey | FGGPAWQCCGEWTJ-UHFFFAOYSA-M |
| InChI | InChI=1S/C3H8O3S3.Na/c4-9(5,6)2-3(8)1-7;/h3,7-8H,1-2H2,(H,4,5,6);/q;+1/p-1 |
| PubChem CID | 2724039 |
| REACH Code | Y110 |
| HTS Code | 29309098 |
| Tariff Code | 2930909599 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H302 Harmful if swallowed
- 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
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+330 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- 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
- 1-Propanesulfonic acid, 2,3-dimercapto-, monosodium salt
- 1-Sodium Sulfonate, 2,3-Dimercaptopropane
- 2,3-Dimercaptopropane-1-sulfonate Sodium
- DMPS Heyl
- Sodium 2,3-dimercapto-1-propanesulfonate
- Sodium 2,3-dimercaptopropane-1-sulfonate
- sodium 2,3-dimercaptopropanesulfonate
- Sodium 2,3-Dithiopropanesulfate
- Unithiol
- UNITIOL
Frequently asked questions
What is 2,3-Dimercapto-1-propanesulfonic acid sodium salt primarily used for?
This compound is primarily used as a heavy metal chelating agent, particularly for treating arsenic and mercury poisoning, and in analytical chemistry for metal ion detection.
What is the chemical formula and molecular weight of this product?
The chemical formula is **C₃H₇NaO₃S₃**, and the molecular weight is **210.16 g/mol**.
How should this product be stored?
Store at **2–8°C** in a cool, dry place, away from direct sunlight and incompatible substances.
What purity grade is available for this product?
Molekula supplies this product at a **minimum purity of 98%**.
Can Molekula supply this product in bulk quantities?
Yes, bulk quantities are available upon request—please contact our sales team for pricing and logistics.
What documentation comes with an order of this product?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
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.