Melting point :9-11 °C(lit.)
Boiling point :106 °C20 mm Hg(lit.)
Density :0.99 g/mL at 25 °C(lit.)
refractive index :n20/D 1.452(lit.)
FEMA :4193 | 2-PENTENOIC ACID
Flash point :102 °C
storage temp. :Store below +30°C.
solubility :60g/l
form :Liquid
pka :pK1:4.70 (25°C)
color :Clear colorless to light yellow
Odor :at 100.00 %. acidic feta cheese buttery
Odor Type :cheesy
explosive limit :1.6%(V)
JECFA Number :1804
BRN :1720312
InChIKey :YIYBQIKDCADOSF-ONEGZZNKSA-N
LogP :1.333 (est)
CAS DataBase Reference :13991-37-2(CAS DataBase Reference)
EPA Substance Registry System :2-Pentenoic acid, (2E)- (13991-37-2)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:	P280 Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P363 Wash contaminated clothing before reuse. P405 Store locked up.