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Succimer

CAS No.
304-55-2
Chemical Name:
Succimer
Synonyms
DMSA;MESO-2,3-DIMERCAPTOSUCCINIC ACID;chemet;dim-sa;uccimer;ro1-7977;SUCCIMER;AI312104;MESO-DMSA;AI3 12104
CBNumber:
CB9142563
Molecular Formula:
C4H6O4S2
Molecular Weight:
182.22
MDL Number:
MFCD00064799
MOL File:
304-55-2.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-04-22 18:57:36
Product description Number Pack Size Price
meso-2,3-Dimercaptosuccinic acid ~98% D7881 1g $34
meso-2,3-Dimercaptosuccinic acid ~98% D7881 5g $96.6
meso-2,3-Dimercaptosuccinic Acid >98.0%(T) D1722 5g $90
meso-2,3-Dimercaptosuccinic Acid >98.0%(T) D1722 25g $346
meso-2,3-Dimercaptosuccinic Acid ≥95% 28515 1g $36
More product size

Succimer Properties

Melting point 196-198 °C (dec.)(lit.)
Boiling point 285.62°C (rough estimate)
Density 1.439 (estimate)
refractive index 1.5220 (estimate)
storage temp. -20°C
solubility DMSO (Sparingly), Methanol (Slightly, Heated)
pka pK1:2.71;pK2:3.48;pK3:8.89(SH);pK4:10.79(SH) (25°C)
form Powder
color White to off-white
Water Solubility Soluble in water, and ethanol (25 mg/ml, results in colorless to light yellow, clear).
Merck 14,8865
BRN 1725150
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
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+
InChIKey ACTRVOBWPAIOHC-XIXRPRMCSA-N
SMILES OC(=O)[C@@H](S)[C@@H](S)C(O)=O
CAS DataBase Reference 304-55-2(CAS DataBase Reference)
FDA UNII DX1U2629QE
NCI Drug Dictionary Chemet
EPA Substance Registry System Butanedioic acid, 2,3-dimercapto-, (2R,3S)-rel- (304-55-2)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictograms
GHS07,GHS08
Signal word  Warning
Hazard statements  H315-H319-H335-H361
Precautionary statements  P201-P261-P280-P305+P351+P338-P405-P501a
PPE Eyeshields, Gloves, type N95 (US)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  24/25-36-26
WGK Germany  2
RTECS  WM7650000
10-23
TSCA  TSCA listed
HS Code  29309090
Storage Class 11 - Combustible Solids
Hazardous Substances Data 304-55-2(Hazardous Substances Data)
Toxicity LD50 i.p. in mice: >3000 mg/kg (Friedheim, Corvi)
NFPA 704
1
2 0

Succimer price More Price(26)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich D7881 meso-2,3-Dimercaptosuccinic acid ~98% 304-55-2 1g $34 2026-04-30 Buy
Sigma-Aldrich D7881 meso-2,3-Dimercaptosuccinic acid ~98% 304-55-2 5g $96.6 2026-04-30 Buy
TCI Chemical D1722 meso-2,3-Dimercaptosuccinic Acid >98.0%(T) 304-55-2 5g $90 2026-04-30 Buy
TCI Chemical D1722 meso-2,3-Dimercaptosuccinic Acid >98.0%(T) 304-55-2 25g $346 2026-04-30 Buy
Cayman Chemical 28515 meso-2,3-Dimercaptosuccinic Acid ≥95% 304-55-2 1g $36 2026-04-30 Buy
Product number Packaging Price Buy
D7881 1g $34 Buy
D7881 5g $96.6 Buy
D1722 5g $90 Buy
D1722 25g $346 Buy
28515 1g $36 Buy

Succimer Chemical Properties,Uses,Production

Description

Succimer is a newly available oral chelator of lead and other heavy metals. The compound is indicated for the treatment of lead poisoning in children. Succimer does not bind iron, calcium or magnesium and preferentially binds lead, mercury and arsenic over copper or zinc. The metal-bound succimer is excreted in the urine. The drug may also be effective in adults.

Chemical Properties

white or off-white powder

Originator

Johnson and Johnson (J&J) (U.S.A.)

Uses

chelating agent, antihypertensive

Uses

meso-2,3-Dimercaptosuccinic Acid is used as a chelating agent and masking agent for cadmium in EDTA titration of zinc.

Uses

chelating agent, treatment of lead poisoning

Uses

A water-soluble chelating agent.

Definition

ChEBI: A sulfur-containing carboxylic acid that is succinic acid bearing two mercapto substituents at positions 2 and 3. A lead chelator used as an antedote to lead poisoning.

Preparation

Isolate the solid complexes of trivalent lanthanide complexes with meso-2,3-Dimercaptosuccinic Acid, furan-2-carboxylic acid, meso-2,3-dimercaptosuccinic acid and sarcosine from the mixture of equimolar solutions of metal nitrates and ligands. Adjust the pH of the mixture to 7 by adding dilute solution of KOH. Reflux the mixture in ethanol (15-20 ml) for 3-4 hours on a steam bath. The clear solution gives a solid mass on cooling, filter through G4 glass crucible and wash several times with the mixture of doubly distilled water and alcohol. Recrystallise it to obtain pure crystal and dry at 60 -70 C [1]. 304-55-2 synthesis

brand name

Chemet (Ovation).

Pharmaceutical Applications

Dimercaptosuccinic acid (DMSA) is a modification of BAL containing two thiol groups, which are responsible for the unpleasant smell, and two carboxylic acid groups. DMSA is also known under the name Succimer. It chemical name is meso-2,3-dimercaptosuccinic acid and the chemical formula is HO2CCH(SH)CH(SH)CO2H. There are two diastereomeric forms, meso and the chiral DL forms, with the meso isomer being used as chelating agent.
DMSA was developed in the 1960s and replaced BAL and edetate in some countries for the treatment of lead, arsenic and mercury poisoning. Furthermore, the dimethylester modification of DMSA has been successfully used for the treatment of heavy-metal poisoning.

Pharmaceutical Applications

The unlicensed drug Succimer (DMSA, meso-2,3-dimercaptosuccinic acid) may be valuable in the treatment of most forms of heavy-metal poisoning including lead, arsenic and mercury. These and other chelating agents such as unithiol (DMPS, 2,3-dimercapto-1-propanesulfonic acid) and α-lipoic acid (ALA) are also used in alternative medicine, which has led to much criticism and discussion. So far, no medical study has proven the effectiveness of chelation therapy for any clinical application other than heavy-metal poisoning.

Veterinary Drugs and Treatments

In veterinary medicine, succimer may be useful for the oral treatment of lead poisoning in small animals (including birds). Potentially, it also may be of benefit for the treatment of other toxic heavy metals such as arsenic or mercury, but more research must be done before this can be recommended.

Purification Methods

Purify the acid by dissolving it in NaOH and precipitating with dilute HCl, drying and recrystallising from MeOH. IR has at 2544 (SH) and max 1689 (CO2H) cm-1 . The bis-S-acetyl derivative has m 183-185o (from EtOAc or Me2CO), and its Me ester has m 119-120o (from pet ether) [Gerecke et al. Helv Chim Acta 44 957 1961, Owen & Sultanbawa J Chem Soc 3112 1949]. [Beilstein 3 III 1033.]

Succimer Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 465)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Worldyang Chemical Co.,Ltd.
+86-021-56795779 +8613651600618 sales@worldyachem.com China 967 58
Hebei Chuanghai Biotechnology Co., Ltd
+8615350571055 Sibel@chuanghaibio.com China 8738 58
Wuhan Fortuna Chemical Co., Ltd
+86-27-59207850 info@fortunachem.com China 5974 58
Henan Fengda Chemical Co., Ltd
+86-371-86557731 +86-13613820652 info@fdachem.com China 20124 58
airuikechemical co., ltd.
+86-18353166132 sales02@airuikechemical.com China 983 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
+8613343047651 admin@zlchemi.com China 3692 58
Wuhan Fortuna Chemical Co.,Ltd
+86-2759207851; +8618007136271 hk@fortunachem.com China 6010 58
Xi an Biohorlden Industry Trade Co Ltd
+86-18829283179 +86-13636819721 sales@horlden.com China 334 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21588 55
Jiangsu Qingquan Chemical Co., Ltd.
+86-571-86589381,86589382,86589383 sales1@qqpharm.com CHINA 154 55

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  • Succimer is a lead chelator for oral administration and has also been used to treat mercury poisoning, albeit with limited eff....
  • Sep 6,2024

View Lastest Price from Succimer manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Succimer pictures 2026-05-04 Succimer
304-55-2
0.99 RongNa Biotechnology Co.,Ltd
Succimer DMSA pictures 2026-04-30 Succimer DMSA
304-55-2
US $0.00-0.00 / Kg 1Kg 99% 50KG Xi an Biohorlden Industry Trade Co Ltd
meso-2,3-Dimercaptosuccinic acid (DMSA) pictures 2026-04-30 meso-2,3-Dimercaptosuccinic acid (DMSA)
304-55-2
US $0.00 / Kg/Bag 1KG 99.0%~101.0% 500kg/month WUHAN FORTUNA CHEMICAL CO., LTD
  • Succimer pictures
  • Succimer
    304-55-2
  • 0.99
  • RongNa Biotechnology Co.,Ltd
  • Succimer DMSA pictures
  • Succimer DMSA
    304-55-2
  • US $0.00-0.00 / Kg
  • 99%
  • Xi an Biohorlden Industry Trade Co Ltd
(2R,3S)-2,3-diMercaptosuccinic acid (2R,3S)-rel-2,3-DiMercaptosuccinic acid Butanedioic acid,2,3-diMercapto-, (2R,3S)-rel- meso-2,3-Dimercaptosuccinic acid API Succimer -rel-2,3-Dimercaptosuccinic acid (2S,3R)-2,3-dimercaptobutanedioate (r*,s*)-2,3-dimercaptobutanedioicacid 2,3-dimercapto-,(r*,s*)-butanedioicaci 2,3-dimercapto-,(theta,s)-butanedioicaci 3-dimercapto-meso-succinicaci 2,3-DITHIO-MESO-TARTARIC ACID 2,3-BIS-SULFANYLBUTANEDIOIC ACID 2,3-DIMERCAPTOSUCCINICACIDMESO MESO-DMSA 2,3-DITHIOSUCCINICACID 2,3-dimercapto-, ( theta,s)-butanedioic acid 2,3-dimercapto-, (r*,s*)-butanedioic acid 3-dimercapto- meso-succinic acid MESO-2,3-DIMERCAPTOSUCCINIC ACIDF&D VERS ION MESO-2,3-DIMERCAPTO SUCCINIC ACID ENTERPRISE STANDARD =98.5% DimercaptosuccinicAcid(Dmsa) 2,3-Dimercaptosuccinic rel-(2R,3S)-2,3-Dimercaptobutanedioic acid chemet dim-sa meso-2,3-dithiosuccinicacid meso-dimercaptosuccinicacid ro1-7977 SUCCIMER meso-2,3-Dimercaptosuccinic acid,98% 2,3-DIMERCAPTO SUCCINIC ACID (DMSA) extrapure 2,3-Dithio-meso-tartaric acid, DMSA, Succimer meso-2,3-Dimercaptosuccinic acid,2,3-Dithio-meso-tartaric acid, DMSA, Succimer Meso-2,3-DiMercaptosuccinic acid(DMSA,SucciMer) DMSA (Meso-2,3-diMercaptosuccinic acid) Meso-2,3-DiMercaptosuccinic acid, 98% 5GR meso-2,3-DimercaptosuccinicAcid> DMSA Succimer Succimer USP/EP/BP meso-2,3-Dimercaptosuccinic acid (DMSA) Best Price Dmsa Powder Dimercaptosuccinic Acid?304-55-2 2,3-Dimercapto succinic acid, 98%+ 2,3-Dimercapto succinic acid, 97%+ 2,3-Dimercaptosuccinic Acid (DMSA, Succimer) extrapure, 98% (2S,3R)-2,3-bis(sulfanyl)butanedioic acid AI3 12104 AI312104 AI3-12104 2,3-dimercaptosuccinic acid、Succimer、DMSA uccimer DMSA (Meso-2,3-dimercaptosuccinic acid), Lead chelating agent Succimer, 10 mM in DMSO Dithiosuccinic acid Succimer DMSA Rel-(2r,3s)-2,3-dimercaptosuccinic acid DMSA MESO-2,3-DIMERCAPTOSUCCINIC ACID