|Preferred IUPAC name
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||74.127 g·mol−1|
|Density||0.888 g mL−1|
|Melting point||−12.00 °C; 10.40 °F; 261.15 K|
|Boiling point||140.1 °C; 284.1 °F; 413.2 K|
|Vapor pressure||<1.1 kPa or 11.5 mm Hg(at 20 °C)|
Refractive index (nD)
|H226, H302, H310, H314|
|P280, P302+P350, P305+P351+P338, P310|
|NFPA 704 (fire diamond)|
|Flash point||51 °C (124 °F; 324 K)|
|350 °C (662 °F; 623 K)|
|Lethal dose or concentration (LD, LC):|
LD50 (median dose)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
(what is ?)
1,3-Diaminopropane, also known as trimethylenediamine, is a simple diamine with the formula H2N(CH2)3NH2. A colourless liquid with a fishy odor, it is soluble in water and many polar organic solvents. It is isomeric with 1,2-diaminopropane. Both are building blocks in the synthesis of heterocycles, such as those used in textile finishing, and coordination complexes. It is prepared by the amination of acrylonitrile followed by hydrogenation of the resulting aminopropionitrile.
The potassium salt was used in the alkyne zipper reaction.
Known uses of 1,3-diaminopropane are in the synthesis of piroxantrone and losoxantrone.
1,3-Diaminopropane is toxic on skin exposure with an LD50 of 177 mg kg−1 (dermal, rabbit)