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Benalaxyl

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Benalaxyl Basic information
Benalaxyl Chemical Properties
  • Melting point:78-80°C
  • Boiling point:463.59°C (rough estimate)
  • Density 1.2700
  • vapor pressure 6.6 x 10-5 Pa (25 °C)
  • refractive index 1.5614 (estimate)
  • storage temp.  0-6°C
  • Water Solubility 28.6 mg l-1 (20 °C)
  • form neat
  • pka1.52±0.50(Predicted)
  • Merck 13,1028
  • BRN 3001587
  • NIST Chemistry ReferenceBenalaxyl(71626-11-4)
  • EPA Substance Registry SystemBenalaxyl (71626-11-4)
Safety Information
  • Hazard Codes N
  • Risk Statements 50/53
  • Safety Statements 60-61
  • RIDADR UN 3077
  • WGK Germany 2
  • RTECS AY5993200
  • HS Code 29242990
  • ToxicityLD50 in rats (mg/kg): 4200 orally; 1100 i.p.; LC50 (96 hr) in rainbow trout: 3.75 mg/l (Bergamaschi)
Benalaxyl Usage And Synthesis
  • UsesAn acylamino acid fungicide.
  • UsesAgricultural fungicide.
  • UsesBenalaxyl is used for the control of Oomycetes on a wide range of crops, fruit, flowers, ornamentals and turf.
  • Metabolic pathwayThe fate of 14C-benalaxyl as affected by mancozeb is determined on the surface and in the tissues of grape leaves 7 days after the single foliar application of a mixture with mancozeb. The main oxidative scheme with rat liver microsomes is quite similar to that observed in plants. The only differences are represented by a further hydroxylation on the second ortho methyl group, and only traces of the meta hydroxylation take place on the xylene ring.
  • DegradationBenalaxyl is stable in aqueous media over a wide pH range but it is hydrolysed in concentrated alkali. Its DT50 at pH 9 and 25 °C is 86 days (PM). It is reasonably stable to sunlight in aqueous solution. When irradiated in solution with UV light (254 nm) it is degraded with a half-life of 55 minutes (Pirisi et al., 1996). Products were compounds 2 and 3 (see Scheme 1) which are common also to metalaxyl and furalaxyl. These were detected in a non-labelled study. Under simulated sunlight its half-life was 167 days.
Benalaxyl Preparation Products And Raw materials
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