Melting point :4.5 °C
Boiling point :134-136 °C4 mm Hg(lit.)
Density :0.962 g/mL at 25 °C(lit.)
vapor pressure :1 hPa (50 °C)
refractive index :n20/D 1.462
Flash point :>230 °F
storage temp. :Keep in dark place,Inert atmosphere,Room temperature
Water Solubility :Completely miscible in water
form :clear liquid
pka :10.06±0.10(Predicted)
color :Colorless to Light yellow to Light orange
PH :10 (100g/l, H2O, 20℃)
explosive limit :1.3-4.9%(V)
BRN :1750788
CAS DataBase Reference :7300-34-7(CAS DataBase Reference)
EPA Substance Registry System :1-Propanamine, 3,3'-[1,4-butanediylbis(oxy)]bis- (7300-34-7)

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 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H332 Harmful if inhaled Acute toxicity,inhalation Category 4 Warning P261, P271, P304+P340, P312
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P271 Use only outdoors or in a well-ventilated area. 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.