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A carbamate compound used as a general purpose Insecticide. Carbaryl was introduced by Union Carbide in 1958 in the U.S. and was commonly sold under the name Sevin (trademarked by Bayer), It is a contact insecticide that works as a reverse cholinesterase inhibitor. It is stable to light and heat and may provide residual effectiveness for up to 4 months. Product information indicates the formulation contain solvents that may stain some materials such as rugs, drapes, and fabrics. The use of carbaryl is restricted in the U.S. The Sevin trademark has since been acquired by GardenTech, which has eliminated carbaryl from most Sevin formulations.

Synonyms and Related Terms

1-naphthyl methylcarbamate;

Commercial products: Sevin [Union Carbide]; Arylam; Carylderm; Clinicide; Derbac; Dicarbam; Ravyon; Seffein; Demon WP


  • Toxic by ingestion, inhalation and skin contact. LD50 = 850 mg/kg (rats)
  • Combustible. Flash point = 203 C
  • Carcinogen, teratogen and suspected mutagen.
  • Noncorrosive.
  • Loveland Products: SDS

Physical and Chemical Properties

Soluble in dimethyl formamide, acetone, cyclohexanone. Insoluble in water.

Composition C10H7OOCNHCH3
CAS 63-25-2
Melting Point 142 C
Density 1.232 g/ml
Molecular Weight mol. wt. = 201.2

Resources and Citations

  • Lynda A. Zycherman, J.Richard Schrock, A Guide to Museum Pest Control, FAIC and Association of Systematics Collections, Washington DC, 1988
  • G.Caneva, M.P.Nugari, O.Salvadori, Biology in the Conservation of Works of Art, ICCROM, Rome, 1991
  • J. Dawson, CCI Technical Bulletin, 'Solving Museum Insect Problems: Chemical Control' , Canadian Conservation Institute, Ottawa, No. 15
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry #1831
  • The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998