Melting point :125-127 °C(lit.)
Boiling point :260 °C(lit.)
Density :1.42
refractive index :1.5160 (estimate)
Flash point :259-261°C
storage temp. :Keep in dark place,Sealed in dry,Room Temperature
solubility :Acetone (Slightly), Chloroform (Slightly)
form :solid
pka :3.49(at 25℃)
color :White to Off-White
Water Solubility :80 g/L (20 ºC)
Merck :14,9354
BRN :110150
InChIKey :QERYCTSHXKAMIS-UHFFFAOYSA-N
LogP :1.570
CAS DataBase Reference :527-72-0(CAS DataBase Reference)
NIST Chemistry Reference :2-Thiophenecarboxylic acid(527-72-0)
EPA Substance Registry System :2-Thiophenecarboxylic acid (527-72-0)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405 Store locked up.