2418-14-6

Basic information

• Product Name: Dimercaptosuccinic acid
• Synonyms: 2,3-dimercapto-butanedioicaci;2,3-dimercaptobutanedioicacid;2,3-dimercapto-succinicaci;alpha,beta-dimercaptosuccinicacid;suximer;2,3-DIMERCAPTOSUCCINIC ACID;DIMERCAPTOSUCCINIC ACID;imercaptosuccinic Acid
• CAS NO: 2418-14-6
• Molecular Formula: C₄H₆O₄S₂
• Molecular Weight: 182.22
• EINECS: 219-334-5
• Mol File: 2418-14-6.mol
• Article Data: 2

Chemical Properties

• Melting Point: 196-198°C
• Boiling Point: 285.62°C (rough estimate)
• Flash Point: 115.622 °C
• Appearance: /
• Density: 1.439 (estimate)
• Vapor Pressure: 0.002mmHg at 25°C
• Refractive Index: 1.5220 (estimate)
• Storage Temp.: -20°C Freezer, Under inert atmosphere
• Solubility: Methanol (Slightly)
• PKA: 2.74±0.25(Predicted)
• Stability: Air Sensitive, Stench, Unstable in DMSO
• CAS DataBase Reference: Dimercaptosuccinic acid(CAS DataBase Reference)
• NIST Chemistry Reference: Dimercaptosuccinic acid(2418-14-6)
• EPA Substance Registry System: Dimercaptosuccinic acid(2418-14-6)

Safety Data

• Hazardous Substances Data: 2418-14-6(Hazardous Substances Data)

Usage

Uses

2,3-Dimercaptosuccinic Acid is used as a chelator in the treatment of mercury and lead poisonings.

InChI:InChI=1/C4H6O4S2/c5-3(6)1(9)2(10)4(7)8/h1-2,9-10H,(H,5,6)(H,7,8)/p-2/t1-,2+

Upstream product

• 17660-55-8 rac-2,3-bis(acetylthio)succinic acid 

Downstream Products

• 87494-37-9 cis-4,5-dicarboxy-2-phenyl-1,3-dithiolane 
• 109160-45-4 (NH₂)2C₃N₃NHC₆H₄SbS₂C₂H₂(COOH)2 
• 17660-57-0 rac.-2,3-Dimercapto-bernsteinsaeure-dimethylester 

Relevant articles and documents

Dimercaptosuccinic acid and salt thereof and preparation method

The invention relates to the technical field of organic synthesis, in particular to dimercaptosuccinic acid and salt thereof and a preparation method. The preparation method comprises the following steps: carrying out reaction on ethyl xanthate and 2,3-dibromosuccinic acid, so that 2,3-diethyl xanthate-1,4 succinic acid is obtained; hydrolyzing the 2,3-diethyl xanthate-1,4 succinic acid, so that 2,3-dimercaptosuccinate solution is obtained; and acidifying the obtained 2,3-dimercaptosuccinate solution, so that 2,3-dimercaptosuccinic acid is obtained. The preparation method provided by the invention has the advantages that technology is simple, liquid-state thioacetic acid with strong odor and unstable quality does not need to be used, unsafe addition reaction does not need to be carried out, preparation period is short, yield is high, cost is low, and the dimercaptosuccinic acid can be applicable to industrial production and popularization and can be further prepared into a dimercaptosuccinate product. The dimercaptosuccinic acid product and the dimercaptosuccinate product are high in purity and low in cost.