Propyleneimine

Propyleneimine
Names
	IUPAC name 2-Methylaziridine
	Other names 1,2-Propylenimine
Identifiers
CAS Number	75-55-8 ;
3D model (JSmol)	Interactive image;
ChemSpider	6137;
ECHA InfoCard	100.000.799
EC Number	613-033-00-6;
KEGG	C19496;
PubChem CID	6377;
RTECS number	CM8050000;
UNII	ULC972Q7TZ ;
UN number	1921 (inhibited)
CompTox Dashboard (EPA)	DTXSID8024286 ;
	InChI InChI=1S/C3H7N/c1-3-2-4-3/h3-4H,2H2,1H3 Key: OZDGMOYKSFPLSE-UHFFFAOYSA-N; InChI=1/C3H7N/c1-3-2-4-3/h3-4H,2H2,1H3 Key: OZDGMOYKSFPLSE-UHFFFAOYAW;
	SMILES N1C(C)C1;
Properties
Chemical formula	C3H7N
Molar mass	57.096 g·mol−1
Appearance	Colorless, oily liquid
Odor	ammonia-like
Density	0.9 g/mL
Melting point	−63 °C (−81 °F; 210 K)
Boiling point	67 °C (153 °F; 340 K)
Solubility in water	Miscible
Vapor pressure	112 mmHg (20°C)
Hazards
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H300, H310, H318, H330, H350, H411
Precautionary statements	P201, P202, P210, P233, P240, P241, P242, P243, P260, P262, P264, P270, P271, P273, P280, P281, P284, P301+P310, P302+P350, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P310, P320, P321, P330, P361, P363, P370+P378, P391, P403+P233, P403+P235, P405, P501 Preview warning: Omit Rules: keep P320, omit P322
Flash point	−4 °C (25 °F; 269 K)
	Lethal dose or concentration (LD, LC):
LCLo (lowest published)	500 ppm (rat, 4 hr)
	NIOSH (US health exposure limits):
PEL (Permissible)	TWA 2 ppm (5 mg/m3) [skin]
REL (Recommended)	Ca TWA 2 ppm (5 mg/m3) [skin]
IDLH (Immediate danger)	Ca [100 ppm]
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Propyleneimine (or propylene imine) is the organic compound with the formula CH₃CH(NH)CH₂. It is a secondary amine and the smallest chiral aziridine (ring containing C₂N). It is a flammable colorless liquid. Its derivatives, copolymers and oligomers, are of commercial interest.