| 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 conditions | room temp |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| pka | 10.53±0.19(Predicted) |
| form | Liquid After Melting |
| colour | Clear colorless |
| proportion | 0.925 |
| Odor | Ichtyal, ammoniacal |
| PH | 12.0-13.5 (25℃, 1M in H2O) |
| Maximum wavelength | λ: 260 nm Amax: 0.1λ: 280 nm Amax: 0.05 |
| Water solubility | Miscible with water, ethanol and ether. |
| susceptibility | Air Sensitive |
| 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 | 124-20-9 |
| EPA Chemical Information | 1,4-Butanediamine, N-(3-aminopropyl)- (124-20-9) |
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