Molekula
meso-2,3-Dimercaptosuccinic 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
Meso-2,3-dimercaptosuccinic acid is a chelating agent used in the treatment of heavy metal poisoning and as a research reagent in biochemistry. It is a white to off-white crystalline powder with the molecular formula HO2CCH(SH)CH(SH)CO2H, a molecular weight of 182.22 g/mol, and a CAS number of 304-55-2. It must be stored at -15 to -20 °C and is classified with a warning signal word. Molekula supplies meso-2,3-dimercaptosuccinic 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
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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5 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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25 g — £93.20 per pack ex VAT · £111.84 inc. VAT
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 crystalline powder |
| Assay/Purity | ≥98.5% |
| Melting Point | 190°C |
| Heavy metals | ≤10ppm |
| pH | 2.5 - 3 |
| Loss on Drying | ≤0.5% |
| Residue on Ignition | ≤0.1% |
| Identification (IR) | Conforms to reference |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Odour | Unpleasant, characteristic mercaptan odor |
| Melting Point | 193 °C |
Source: PubChem CID 2724354 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 47679898 |
| CAS Number | 304-55-2 |
| IUPAC Name | (2S,3R)-2,3-bis(sulfanyl)butanedioic acid |
| EC Number | 206-155-2 |
| Molecular Formula | HO2CCH(SH)CH(SH)CO2H |
| Molecular Weight | 182.22 |
| Exact Mass | 181.9708 |
| SMILES | [C@@H]([C@@H](C(=O)O)S)(C(=O)O)S |
| InChIKey | ACTRVOBWPAIOHC-XIXRPRMCSA-N |
| InChI | InChI=1S/C4H6O4S2/c5-3(6)1(9)2(10)4(7)8/h1-2,9-10H,(H,5,6)(H,7,8)/t1-,2+ |
| PubChem CID | 2724354 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2930.90.4920 |
| Tariff Code | 2930909599 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
- H361 Suspected of damaging fertility or the unborn child
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P263 Avoid contact during pregnancy/while nursing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- 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
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.
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
- (R*,S*)-2,3-Dimercaptobutanedioic acid
- Butanedioic acid, 2,3-dimercapto-, (2R,3S)-rel-
- Chemet
- Dim-sa
- DMSA
- meso-Dimercaptosuccinic acid
- Ro 1-7977
- Succimer
- Succimero
- Succimerum
Frequently asked questions
What is meso-2,3-Dimercaptosuccinic acid used for?
It is primarily used as a chelating agent in the treatment of heavy metal poisoning and in research applications involving metal coordination.
What is the chemical formula and molecular weight of meso-2,3-Dimercaptosuccinic acid?
The formula is HO2CCH(SH)CH(SH)CO2H with a molecular weight of 182.22 g/mol.
How should meso-2,3-Dimercaptosuccinic acid be stored?
It should be stored at temperatures between -15 and -20 °C to maintain stability and prevent degradation.
What grade is available for this product?
Molekula supplies meso-2,3-Dimercaptosuccinic acid in analytical grade.
Can Molekula supply this compound in bulk?
Yes, Molekula can supply meso-2,3-Dimercaptosuccinic acid in bulk quantities—please contact sales for details.
What documentation comes with the order?
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.