Aziridine

C₂H₅NCAS 151-56-443.07 g/mol

Open in Covalent MOL file

Secondary amine

Properties

Molecular formula: C₂H₅N
Molar mass: 43.07 g/mol
Exact mass: 43.0422 Da
Density: 0.8321 g/mL (at 24 °C)
Melting point: −74 °C
Boiling point: 56–57 °C
pKa: 8.04 (conjugate acid)
Flash point: -11.1 °C (closed cup)
Water solubility: miscible
logP: -0.41Crippen estimate
Polar surface area: 21.9 Å²
H-bond donors / acceptors: 1 / 1
Rotatable bonds: 0

Hazards

Danger

H225 Highly Flammable liquid and vaporFlammable liquids
H300 Fatal if swallowedAcute toxicity, oral
H310 Fatal in contact with skinAcute toxicity, dermal
H314 Causes severe skin burns and eye damageSkin corrosion/irritation
H330 Fatal if inhaledAcute toxicity, inhalation
H340 May cause genetic defectsGerm cell mutagenicity
H350 May cause cancerCarcinogenicity
H411 Toxic to aquatic life with long lasting effectsHazardous to the aquatic environment, long-term hazard

Harmonised EU classification (CLP Annex VI), via PubChem.

Precautionary statements

P203, P210, P233, P240, P241, P242, P243, P260, P262, P264, P270, P271, P273, P280, P284, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P318, P320, P321, P330, P361+P364, P363, P370+P378, P391, P403+P233, P403+P235, P405, P501