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Diethyltoluamide

CAS Number
134-62-3
EC Number
205-149-7
Chemical Formula
C12H17NO
Molecular Weight
191.27 g/mol

Description

Diethyltoluamide ( CAS 134-62-3 ), widely recognized by its abbreviation DEET, is the benchmark active ingredient in insect and arthropod repellent formulations. It acts by disrupting the olfactory receptors of insects, preventing them from locating a host. This mechanism makes it the reference standard against which other repellent actives are measured. It is the primary active in consumer and professional-grade repellent products including sprays, lotions, creams, and impregnated wipes. Concentrations typically range from 5% to 100% depending on protection duration and target market. In military and expedition-grade formulations, high-concentration products are specified for extended field use against mosquitoes and ticks. Personal care manufacturers incorporate it into pump sprays and roll-ons sold through pharmacy and outdoor retail channels. It is also used to treat fabrics and gear in combination repellent systems for outdoor gear. While fabric-specific actives such as permethrin are common, this material remains a versatile choice for many applications. It is supplied as a clear to pale yellow liquid in bulk and drummed quantities for industrial use. Technical-grade is the standard commercial specification, with purity levels typically at 95–99%. Some suppliers offer pharmaceutical or cosmetic-grade material to support regulated consumer product registration requirements. Contact us for supply of Diethyltoluamide Request Quote

Other Names (Synonyms)

N,N-diethyl-3-methylbenzamide | diéthyltoluamide | 3-methyl-N,N-diethylbenzamide | DEET | N,N-diethyl-m-toluamide | Dieltamid | Flypel | Benzamide, N,N-diethyl-3-methyl-

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-45 °C
Boiling Point160 °C @ Press: 19 Torr
Density0.996 g/cm³ @ Temp: 20 °C
Flash Point>230 °F
AppearanceColorless to Amberlike Liquid
ColorClear
Odormild bland odor
FormLiquid
Water SolubilityNEGLIGIBLE
Vapor Pressure<0.01 mm Hg ( 25 °C)
Refractive Indexn 20/D 1.523(lit.)

Safety & Handling

Warning
GHS07· Irritant

Hazard Statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H320Causes eye irritation
H336May cause drowsiness or dizziness
H402Harmful to aquatic life
H412Harmful to aquatic life with long lasting effects

Precautionary Statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P330Rinse mouth.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P317Get emergency medical help.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code29242995
Storage Class10 - Combustible liquids
WGK (Germany)2