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Names | |||
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Preferred IUPAC name
Azepan-2-one | |||
Other names
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Identifiers | |||
3D model (JSmol)
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106934 | |||
ChEBI | |||
ChEMBL | |||
ChemSpider | |||
ECHA InfoCard | 100.003.013 | ||
EC Number |
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101802 | |||
KEGG | |||
PubChem CID
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UNII | |||
CompTox Dashboard (EPA)
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Properties | |||
C6H11NO | |||
Molar mass | 113.160 g·mol−1 | ||
Appearance | White solid | ||
Density | 1.01 g/cm3 | ||
Melting point | 69.2 °C (156.6 °F; 342.3 K) | ||
Boiling point | 270.8 °C (519.4 °F; 544.0 K) at 1013.25 hPa | ||
866.89 g/l (22 °C) | |||
Vapor pressure | 8.10−8 mmHg (20°C)[1] | ||
Hazards | |||
GHS labelling: | |||
Warning | |||
H302, H315, H319, H332, H335 | |||
P261, P264, P270, P271, P280, P301+P312, P302+P352, P304+P312, P304+P340, P305+P351+P338, P312, P321, P330, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |||
Flash point | 125 °C (257 °F; 398 K) | ||
Explosive limits | 1.4%-8.0%[1] | ||
NIOSH (US health exposure limits): | |||
PEL (Permissible)
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none[1] | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Caprolactam (CPL) is an organic compound with the formula (CH2)5C(O)NH. This colourless solid is a lactam (a cyclic amide) of caproic acid. Global demand for this compound is approximately five million tons per year, and the vast majority is used to make Nylon 6 filament, fiber, and plastics.[2]