2-Pentanone

2-Pentanone

Names
IUPAC name 2-pentanone
Other names methyl propyl ketone 2-pentanone MPK
Identifiers
CAS Registry Number	107-87-9 Y
ChEBI	CHEBI:16472 Y
ChEMBL	ChEMBL45345 Y
ChemSpider	7607 Y
InChI InChI=1S/C5H10O/c1-3-4-5(2)6/h3-4H2,1-2H3 Y Key: XNLICIUVMPYHGG-UHFFFAOYSA-N Y InChI=1/C5H10O/c1-3-4-5(2)6/h3-4H2,1-2H3 Key: XNLICIUVMPYHGG-UHFFFAOYAJ
Jmol-3D images	Image
KEGG	C01949 Y
PubChem	7895
RTECS number	CY1400000
SMILES O=C(C)CCC
UNII	I97392I10V Y
Properties
Chemical formula	C5H10O
Molar mass	86.13 g/mol
Appearance	Colorless liquid
Odor	resembling acetone
Density	0.809 g/ml
Melting point	−86 °C (−123 °F; 187 K)
Boiling point	102 °C (216 °F; 375 K)
Vapor pressure	3.6 kPa (20 °C)
Refractive index (nD)	1.390 (20 °C)
Viscosity	0.50 mPa·s (20 °C)
Hazards
Flash point	10 °C (50 °F)
Explosive limits	1.5%-8.2%[1]
US health exposure limits (NIOSH):
PEL (Permissible)	TWA 200 ppm (700 mg/m3)[1]
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

2-Pentanone or methyl propyl ketone (MPK) is a ketone and solvent of minor importance. It is comparable to MEK (Methyl ethyl ketone), but has a lower solvency and is more expensive.^[2] It occurs in leaf tobacco.^[3]

References