Lapyrium, or lapirium, as the chloride salt lapirium chloride (INN) or lapyrium chloride (USAN), is a cationic surfactant that is used in personal care products as a biocide and antistatic agent.[2] It is also used in waste-water treatment and corrosion inhibition formulations. It is primarily used as the chloride salt, lapyrium chloride.

Lapyrium
Names
Preferred IUPAC name
1-(2-{[2-(Dodecanoyloxy)ethyl]amino}-2-oxoethyl)pyridin-1-ium
Other names
Lapirium; 1-({[2-(Dodecanoyloxy)ethyl]carbamoyl}methyl)pyridin-1-ium
Identifiers
3D model (JSmol)
ChEMBL
ChemSpider
UNII
  • InChI=1S/C21H34N2O3/c1-2-3-4-5-6-7-8-9-11-14-21(25)26-18-15-22-20(24)19-23-16-12-10-13-17-23/h10,12-13,16-17H,2-9,11,14-15,18-19H2,1H3/p+1
    Key: UGJWZYARKOFRDB-UHFFFAOYSA-O
  • InChI=1/C21H34N2O3/c1-2-3-4-5-6-7-8-9-11-14-21(25)26-18-15-22-20(24)19-23-16-12-10-13-17-23/h10,12-13,16-17H,2-9,11,14-15,18-19H2,1H3/p+1
    Key: UGJWZYARKOFRDB-IKLDFBCSAA
  • O=C(NCCOC(=O)CCCCCCCCCCC)C[n+]1ccccc1
Properties
C21H35N2O3
Molar mass 363.522 g·mol−1
Melting point 141 to 144 °C (286 to 291 °F; 414 to 417 K)[1] (chloride)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Undecoylium chloride (Emulsept) is a mixture of closely related chemical compounds, used as a disinfectant, in which lapyrium is the major component.[3] In addition, its complex with iodine, undecoylium chloride-iodine (Virac), is used similarly.

References

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  1. ^ "6272-74-8 (lapirium chloride) Product Description".
  2. ^ "Final Report on the Safety Assessment of Steapyrium Chloride and Lapyrium Chloride". International Journal of Toxicology. 10: 87–97. 1991. doi:10.3109/10915819109078624. S2CID 208361218.
  3. ^ Merck Index, 12th Edition, 9982