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Insecticide
  • Propoxur(CAS RN 114-26-1)

Propoxur(CAS RN 114-26-1)

  • Description:
  • Propoxur content:

    Min. 97%.

    Appearance:

    White solid.

    Free Phenol:

    Max. 0.3%.

    Moisture:

    Max. 0.3%.

    Acidity (as H2SO4) :

    Max. 0.05%.

    Insoluble substance in acetone:

    Max. 0.1%.

  • Description

Common name Propoxur (BSI, E-ISO, F-ISO, ESA); PHC (JMAF); arprocarb* (former BSI name)
IUPAC name 2-isopropoxyphenyl methylcarbamate
Chemical Abstracts name 2-(1-methylethoxy)phenyl methylcarbamate
CAS RN [114-26-1] 
 

PHYSICAL CHEMISTRY
Mol. wt. 209.2  M.f. C11H15NO3  Form Colourless crystals; (tech., white to cream-coloured crystals).  M.p. 90 ºC (crystal form I), 87.5 ºC (crystal form II, unstable)  B.p. Decomposes on distillation  V.p. 1.3 mPa (20 ºC); 2.8 mPa (25 ºC)  KOW logP = 1.56  Henry 1.5 ´ 10-4 Pa m3 mol-1 (20 °C)  S.g./density 1.18 (20 ºC)  Solubility In water 1.9 g/l (20 ºC). Soluble in most organic solvents, e.g. isopropanol >200, toluene 50-100, hexane 1-2 (all in g/l, 20 ºC).  Stability Stable in water at pH 7. Hydrolysed by strong alkali; DT50 (22 ºC) 1 y (pH 4), 93 d (pH 7), 30 h (pH 9); DT50 (20 ºC) 40 min (pH 10). Direct photodegradation is not a major contributor to the overall elimination of propoxur from the environment (DT50 5-10 d); indirect photodecomposition (addition of humic acid) is more rapid (DT50 88 h). 
 

APPLICATIONS
Biochemistry Cholinesterase inhibitor.
Mode of action Non-systemic insecticide with contact and stomach action. Gives rapid knockdown, and has long residual activity.
Uses Control of cockroaches, flies, fleas, mosquitoes, bugs, ants, millipedes and other insect pests in food storage areas, houses, animal houses, etc. Control of sucking and chewing insects (including aphids) in fruit, vegetables, ornamentals, vines, maize, alfalfa, soya beans, cotton, sugar cane, rice, cocoa, forestry, etc.; also against migratory locusts and grasshoppers.
Phytotoxicity Chrysanthemums, carnations, and hydrangeas may be injured at higher dose rates. Blossom thinning may occur on fruit trees.
Formulation types 97%TC 20%EC

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