Mercaptosuccinic acid Chemical Properties

Melting point:

155-157 °C(lit.)

Boiling point:

241.69°C (rough estimate)

Density 

1.352 (estimate)

refractive index 

1.5500 (estimate)

storage temp. 

Store below +30°C.

solubility 

500g/l

form 

Crystalline Powder

pka

pKa 4.68±0.04(H2O t = 20.0±0.05 I = 0.15) (Uncertain)

color 

White to almost white

Water Solubility 

150 g/L (20 ºC)

Merck 

14,9343

BRN 

1099858

CAS DataBase Reference

70-49-5(CAS DataBase Reference)

NIST Chemistry Reference

2-Sulfanylsuccinic acid(70-49-5)

EPA Substance Registry System

Butanedioic acid, mercapto- (70-49-5)

Safety Information

Hazard Codes 

Xn,C

Risk Statements 

22-36/37/38-34-20/21/22

Safety Statements 

26-36-36/37/39-45-27

RIDADR 

1759

WGK Germany 

3

RTECS 

WM8225000

TSCA 

Yes

HazardClass 

8

PackingGroup 

III

HS Code 

29309070

MSDS

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Mercaptosuccinic acid Usage And Synthesis

Chemical Properties

white to almost white crystalline powder

Uses

Antirheumatic.

Uses

Mercaptosuccinic acid is used in the preparation of mercaptosuccinic acid diethyl ester by reaction with ethanol. It is also used as a brightening agent in metal plating. Further, it serves as an intermediate for the synthesis of corrosion inhibitors, soil fumigants, active pharmaceutical ingredients and electroplating agents.

Uses

Mercaptosuccinic acid has been used as a dopant for the synthesis of carbon nanodots from citric acid. It can be used as a capping and reducing agent to synthesize monolayer-capped gold nanoparticles.

Definition

ChEBI: Thiomalic acid is a C4-dicarboxylic acid. It is functionally related to a succinic acid. It is a conjugate acid of a thiomalate(1-).

brand name

Myochrysine (Merck).

General Description

Mercaptosuccinic acid(MSA) is a chiral multifunctional intermediate material used as a stabilizing and capping agent in the synthesis of biologically active sulfurs.

Purification Methods

Dissolve the acid in water and extract it several times with diethyl ether to remove imprities. The aqueous solution gave the acid on freeze-drying. [Beilstein 3 IV 472.]

Mercaptosuccinic acid(70-49-5)Related Product Information

• POTASSIUM THIOGLYCOLATE
• Disodium succinate
• DL-Malic acid
• 2-Ethylhexyl mercaptoacetate
• 3-Mercaptopropionic acid
• Mercaptoacetic acid
• Ethyl 2-(Chlorosulfonyl)acetate
• 6-Mercaptopurine
• Calcium thioglycolate
• Succinic acid
• Glycine
• Citric acid
• Stearic acid
• Folic acid
• Sodium thioglycolate
• Ascoric Acid
• N-Dodecyl-N,N-dimethyl-3-ammonio-1-propanesulfonate
• Thiocarbohydrazide