Propylamine, also known as n-propylamine, is an amine with the chemical formula CH₃(CH₂)₂NH₂.^[1] It is a colorless volatile liquid.^[2]

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Propylamine

Names
Preferred IUPAC name Propan-1-amine
Other names Propylamine
Identifiers
CAS Number	107-10-8 Y
3D model (JSmol)	Interactive image
Beilstein Reference	1098243
ChEBI	CHEBI:39870 Y
ChEMBL	ChEMBL14409 Y
ChemSpider	7564 Y
ECHA InfoCard	100.003.149
EC Number	203-462-3
Gmelin Reference	1529
PubChem CID	7852
RTECS number	UH9100000
UNII	I76F18D635 N
UN number	1277
CompTox Dashboard (EPA)	DTXSID6021878
InChI InChI=1S/C3H9N/c1-2-3-4/h2-4H2,1H3 Y Key: WGYKZJWCGVVSQN-UHFFFAOYSA-N Y
SMILES CCCN
Properties
Chemical formula	C3H9N
Molar mass	59.112 g·mol−1
Appearance	Colorless liquid
Odor	fishy, ammoniacal
Density	0.719 g mL−1
Melting point	−83.00 °C; −117.40 °F; 190.15 K
Boiling point	47 to 51 °C; 116 to 124 °F; 320 to 324 K
Solubility in water	Miscible
log P	0.547
Vapor pressure	33.01 kPa (at 20 °C)
Henry's law constant (kH)	660 μmol Pa−1 kg−1
Acidity (pKa)	10.71
Refractive index (nD)	1.388
Thermochemistry
Heat capacity (C)	162.51 J K−1 mol−1
Std molar entropy (S⦵298)	227.44 J K−1 mol−1
Std enthalpy of formation (ΔfH⦵298)	−101.9–−101.1 kJ mol−1
Std enthalpy of combustion (ΔcH⦵298)	−2.368–−2.362 MJ mol−1
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H225, H302, H311, H314, H331
Precautionary statements	P210, P261, P280, P305+P351+P338, P310
Flash point	−30 °C (−22 °F; 243 K)
Explosive limits	2–10.4%
Lethal dose or concentration (LD, LC):
LD50 (median dose)	370 mg kg−1 (oral, rat) 402.6 mg kg−1 (dermal, rabbit)
Related compounds
Related alkanamines	Ethylamine Ethylenediamine Isopropylamine 1,2-Diaminopropane 1,3-Diaminopropane Isobutylamine tert-Butylamine n-Butylamine sec-Butylamine Putrescine
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

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Propylamine is a weak base. Its K_b (base dissociation constant) is 4.7 × 10⁻⁴.

Propyl amine hydrochloride can be prepared by reacting 1-propanol with ammonium chloride at high temperature and pressure using a Lewis acid catalyst such as ferric chloride.