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4282-31-9

Name 2,5-Thiophenedicarboxylic acid
CAS 4282-31-9
EINECS(EC#) 224-284-2
Molecular Formula C6H4O4S
MDL Number MFCD00016896
Molecular Weight 172.16
MOL File 4282-31-9.mol
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Chemical Properties

Appearance white to light yellow crystal powder
Melting point  >300 °C (lit.)
Boiling point  272.46°C (rough estimate)
density  1.473 (estimate)
refractive index  1.5500 (estimate)
storage temp.  Keep in dark place,Sealed in dry,Room Temperature
form  solid
pka 2.76±0.10(Predicted)
Water Solubility  Very soluble in water.
BRN  136781
CAS DataBase Reference 4282-31-9(CAS DataBase Reference)
EPA Substance Registry System 4282-31-9(EPA Substance)

Safety Data

Hazard Codes  Xi
Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection .
WGK Germany  3
Hazard Note  Irritant
TSCA  Yes
HazardClass  IRRITANT
HS Code  29349990

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