Agrochemical Intermediate Triazinamide for Piercing-Sucking Insecticide Production

Published by yangjianan on

1. Product Basic Identity

  • Chemical Name: 4-Acetamido-6-methyl-1,2,4-triazin-3(2H)-one
  • Alias: P4 Intermediate, Triazinamide
  • CAS No.: 136738-23-3
  • Molecular Formula: C6​H10​N4​O2​
  • Appearance: White crystalline powder, low dust, stable storage
  • Core Position: Exclusive upstream key intermediate for industrial production of Pymetrozine TC

2. Pymetrozine: Target Insecticide Against Piercing-Sucking Pests

Pymetrozine is a selective systemic feeding-blocking insecticide classified IRAC Group 9B, uniquely targeting homopteran piercing-sucking pests:

  • Main controlled pests: Rice planthoppers, aphids, whiteflies, leafhoppers, thrips
  • Application crops: Rice, wheat, vegetables, cotton, fruit trees
  • Unique mode of action: Blocks insect stylet feeding instantly; pests stop nutrient intake irreversibly and starve to death within 48h; low toxicity to pollinators, no cross-resistance with neonicotinoids or pyrethroids
  • Advantages: Strong systemic absorption, long residual efficacy, eco-friendly for integrated pest management (IPM)

3. Triazinamide’s Irreplaceable Synthetic Role

The whole industrial synthesis chain relies on Triazinamide to construct the triazinone core scaffold of Pymetrozine:

  1. Controlled deacetylation to form core amino-triazinoneIts acetyl protective group shields the triazine heterocycle from acid/thermal cleavage during hydrolysis. Mild deacetylation generates high-purity amino-triazinone without ring degradation or tar byproducts.
  2. High-yield condensation with nicotinaldehydeClean amino-triazinone derived from premium Triazinamide reacts selectively with nicotinaldehyde to cyclize into Pymetrozine, single-batch condensation yield above 92%. Ultra-low residual hydrazine impurities avoid wasteful hydrazone side reactions that consume costly nicotinaldehyde.
  3. Stable intermediate quality for continuous mass productionUniform crystal structure resists oxidation and premature hydrolysis during long-distance transport and bulk storage, eliminating batch fluctuation of finished insecticide technical material.

4. Premium Industrial Grade Specifications for Agro Manufacturing

  • HPLC Purity: ≥99.0%
  • Single unknown impurity: ≤0.15%
  • Residual hydrazine, chloride, heavy metals strictly limited per global agrochemical raw material standards
  • Moisture ≤0.3%, low insoluble impurities to prevent pipeline blockage in synthesis lines

5. Production & Environmental Benefits

  1. Boost total Pymetrozine production yield by 5%–8% vs crude unprotected triazine precursors
  2. Reduce solvent consumption and wastewater discharge by cutting repeated recrystallization cycles
  3. Minimize toxic byproducts, simplify waste treatment and meet international pesticide safety regulations
  4. Stable long-term stock capacity supports large-scale global agrochemical factory manufacturing

6. Packaging & Storage

25kg PE-lined fiber drums; seal tightly, store in cool, dry, dark warehouse, separate from strong acid, alkali and oxidants.

Categories: Technology