Melting point :23-25 °C
Boiling point :128-130 °C (14 mmHg)
Density :1.00 g/mL at 20 °C
refractive index :n20/D 1.479(lit.)
Flash point :>230 °F
storage temp. :room temp
solubility :H₂O: 1 M at 20 °C, clear, colorless
pka :10.53±0.19(Predicted)
form :Liquid After Melting
color :Clear colorless
Specific Gravity :0.925
PH :12.0-13.5 (25℃, 1M in H2O)
Odor :Ichtyal, ammoniacal
Water Solubility :Miscible with water, ethanol and ether.
Sensitive :Air Sensitive
λmax :λ: 260 nm Amax: 0.1
λ: 280 nm Amax: 0.05 Merck :14,8742
BRN :1698591
Stability :Stable, but air-sensitive and very hygroscopic - store under argon. Incompatible with acids, acid chlorides, acid anhydrides, oxidizing agents.
InChIKey :ATHGHQPFGPMSJY-UHFFFAOYSA-N
CAS DataBase Reference :124-20-9(CAS DataBase Reference)
EPA Substance Registry System :1,4-Butanediamine, N-(3-aminopropyl)- (124-20-9)

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.