Thiophene-2-carboxylic acid

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CAS NO.: 527-72-0 Catalog: THI103
Formula: C5H4O2S Purity: 98.00% +
Molecular Weight: 128.15 Pubchem CID: 10700
InChI Key: QERYCTSHXKAMIS-UHFFFAOYSA-N
Canonical SMILES: C1=CSC(=C1)C(=O)O
Storage: Store in a cool, dry and well-ventilated area away from incompatible substances.
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Properties Information

Melting point:
125-127 °C(lit.)
Boiling point:
260 °C(lit.)
Density 
1.42
refractive index 
1.5160 (estimate)
Flash point:
259-261°C
form 
solid
pka
3.49(at 25?)
Water Solubility 
80 g/L (20 ºC)
Merck 
14,9354
BRN 
110150
InChIKey
QERYCTSHXKAMIS-UHFFFAOYSA-N

Safety Information

Symbol(GHS) 

GHS07
Hazard statements 
H302-H315-H319-H335
Precautionary statements 
P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36-37/39
WGK Germany 
3
RTECS 
XM8330200
Hazard Note 
Irritant
TSCA 
Yes
HS Code 
29349990