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70-49-5

Name Mercaptosuccinic acid
CAS 70-49-5
EINECS(EC#) 200-736-4
Molecular Formula C4H6O4S
MDL Number MFCD00004860
Molecular Weight 150.15
MOL File 70-49-5.mol
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Chemical Properties

Appearance white to almost white crystalline powder
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 70-49-5(EPA Substance)

Safety Data

Hazard Codes  Xn,C
Risk Statements 
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R34:Causes burns.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S27:Take off immediately all contaminated clothing .
RIDADR  1759
WGK Germany  3
RTECS  WM8225000
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29309070

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