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2-Thiopheneglyoxylic acid Structure

2-Thiopheneglyoxylic acid

Chemical Properties

Melting point 88-91 °C (lit.)
Boiling point 250.38°C (rough estimate)
Density  1.404 (estimate)
refractive index  1.5151 (estimate)
storage temp.  under inert gas (nitrogen or Argon) at 2–8 °C
form  solid
pka 2.09±0.54(Predicted)
Sensitive  Hygroscopic
BRN  115791
CAS DataBase Reference 4075-59-6(CAS DataBase Reference)
FDA UNII 723A77PV2M

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H314
Precautionary statements P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363
Hazard Codes  C,Xi
Risk Statements  34
Safety Statements  26-27-28-36/37/39-45
RIDADR  UN 3261 8/PG 2
WGK Germany  3
Hazard Note  Irritant
HazardClass  8
PackingGroup  III
HS Code  29349990

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