Melting point :122-127 °C (decomp)
Boiling point :105-106 °C12 mm Hg(lit.)
Density :0.957 g/mL at 25 °C(lit.)
refractive index :n20/D 1.512(lit.)
Flash point :140 °F
storage temp. :Inert atmosphere,2-8°C
pka :6.32±0.20(Predicted)
form :clear liquid
color :Colorless to Light yellow to Light orange
Specific Gravity :0.957
BRN :117154
CAS DataBase Reference :936-52-7(CAS DataBase Reference)
NIST Chemistry Reference :N-(1-Cyclopenten-1-yl)-morpholine(936-52-7)
EPA Substance Registry System :Morpholine, 4-(1-cyclopenten-1-yl)- (936-52-7)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning H227 Combustible liquid Flammable liquids Category 4 Warning P210, P280, P370+P378, P403+P235,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:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233 Keep container tightly closed. P240 Ground/bond container and receiving equipment. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. 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. P370+P378 In case of fire: Use … for extinction. P403+P235 Store in a well-ventilated place. Keep cool. P405 Store locked up. P501 Dispose of contents/container to..…