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Mass spectrum of propoxur


[SC Johnson and Sons] A registered trademark for a series of Insecticide containing either Propoxur or a Pyrethrin derivative originally developed by Bayer in 1975. The active ingredients are still manufactured by Bayer but licensed exclusively to SC Johnson. Over 10 formulations are available for extermination and control of household pests such as crickets, roaches, ants, carpenter ants, spiders, silverfish and mosquitoes.

Synonyms and Related Terms



Chemical structure


propoxur; PHC; 2-isopropoxyphenyl methylcarbamate; o-IMPC


  • Toxic by ingestion, inhalation and skin absorption. LD50=90-128 mg/kg
  • Decomposes to form methyl isocyanate.
  • May stain fabrics, plastics, paper and rubber.
  • PestWeb: SDS

Physical and Chemical Properties

Composition (CH3)2CHOC6H4OOCNHCH3
CAS 114-26-1
Melting Point 91.5 C
Molecular Weight mol. wt. = 209.2

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Lynda A. Zycherman, J.Richard Schrock, A Guide to Museum Pest Control, FAIC and Association of Systematics Collections, Washington DC, 1988

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