Melting point :35°C
Boiling point :108 °C (15 mmHg)
Density :0,955 g/cm³
refractive index :1.447-1.449
FEMA :4180 | 4-METHYLPENT-2-ENOIC ACID
Flash point :>100°(212°F)
storage temp. :Refrigerator
pka :pK1:4.70 (25°C)
form :clear liquid
color :Colorless to Light yellow to Light orange
Odor :at 1.00 % in propylene glycol. fatty fruity black tea
Odor Type :fatty
Water Solubility :Slightly soluble in water. Soluble in acetone, ether, ethanol.
JECFA Number :1818
LogP :1.68
CAS DataBase Reference :10321-71-8(CAS DataBase Reference)
EPA Substance Registry System :2-Pentenoic acid, 4-methyl- (10321-71-8)

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 H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
Precautionary statements:	P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. 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. P405 Store locked up.