Melting point :40-44 °C(lit.)
Boiling point :96-98 °C8 mm Hg(lit.)
Density :1.4373 (estimate)
Flash point :233 °F
storage temp. :2-8°C
solubility :sparingly soluble in water, readily soluble in organic solvents. Distribution ratio between acidic water and benzene is about 40. In alkaline aqueous medium it exists in the enolate form, this being relatively more soluble in water. The equilibrium distribution ratio between benzene and alkaline aqueous medium (about pH 8) is about 1. In alkaline aqueous medium of pH > 9 TTA decomposes to trifluoroacetone and acetylthiophen.
pka :5.60±0.23(Predicted)
form :Crystalline Powder, Crystals and/or Chunks
color :Light yellow or beige to brown
Odor :Odorless
Water Solubility :INSOLUBLE
BRN :168645
Stability :Stable for 1 year from date of purchase as supplied. Solutions in DMSO or ethanol may be stored at -20°C for up to 1 month.
InChI :1S/C8H5F3O2S/c9-8(10,11)7(13)4-5(12)6-2-1-3-14-6/h1-3H,4H2
InChIKey :TXBBUSUXYMIVOS-UHFFFAOYSA-N
SMILES :FC(F)(F)C(=O)CC(=O)c1cccs1
CAS DataBase Reference :326-91-0(CAS DataBase Reference)
NIST Chemistry Reference :1,3-Butanedione, 4,4,4-trifluoro-1-(2-thienyl)-(326-91-0)
EPA Substance Registry System :1,3-Butanedione, 4,4,4-trifluoro-1-(2-thienyl)- (326-91-0)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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:	P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.