Mercaptosuccinic acid 99% CAS NO.70-49-5

Mercaptosuccinic acid Basic information
Product Name:    Mercaptosuccinic acid
Synonyms:    MERCAPTOSUCCINIC ACID;DL-THIOPECTIC ACID;DL-MERCAPTOSUCCINIC ACID;THIOMALIC ACID;2-Thiomalic acid;2-thio-malicaci;2-thiomalicacid;alpha-Mercaptosuccinic acid
CAS:    70-49-5
MF:    C4H6O4S
MW:    150.15
EINECS:    200-736-4
Product Categories:    Building Blocks;Chemical Synthesis;Organic Building Blocks;Sulfur Compounds;Thiols/Mercaptans
Mol File:    70-49-5.mol
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)

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.]

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