DEET (English diethylmethylbenzamide), whose chemical name is diethyltoluamide, is a broad-spectrum insect repellent. Chemicalbook has a repellent effect on a variety of biting insects in various environments and can repel stinging flies. , midges, black flies, chiggers, deer flies, fleas, gnats, horse flies, mosquitoes, sand flies, gnats, stable flies and ticks

chemical properties

Colorless to amber liquid. Has a light citrus scent. Virtually insoluble in water, but miscible with ethanol, 2-propanol, propylene glycol and cottonseed oil. The meta-isomer content of industrial products is 85 to 95%, d24 is 0.996 to 0.998, and the viscosity at 30°C is 13.3 centimeters Chemicalbook poise. The acute oral LD50 value of male white rats is about 2000mg/kg; feeding rats with feed containing 1% DEET for 200 days has no adverse effects; the undiluted compound can irritate mucous membranes, but use repellent concentration of DEET on your face and face every day On arms, causes only mild irritation

Purpose:

As an insect repellent, DEET is the main repellent ingredient in various solid and liquid mosquito repellent series. It has special effects in preventing mosquitoes. All three isomers have a repellent effect on mosquitoes, and the meta-isomer is the strongest. Preparation: 70%, 95% liquid.

CAS No. 134-62-3

Molecular formula C12H17NO

Molecular weight 191.27

EINECS No. 205-149-7

Melting point -45°C

Boiling point 111°C1mmHg

Density 0.998g/mL at 20°C (lit.)

Vapor density 6.7 (Chemicalbookvsair)

Vapor pressure <0.01mmHg (25°C)

Refractive index n20/D1.523 (lit.)

Flash point> 230°F

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