Technology

Reverse-phase High Performance Liquid Chromatography (RP-HPLC) is the core standard method for organic impurities. Auxiliary analytical techniques are used for free hydrazine, inorganic ions, moisture and heavy metals. 1. HPLC Method (Primary Test for Organic Impurities) Target analytes Triazinamide main content, deacetylated triazinone, acetonyl oxadiazolone, dimers, unknown single impurities Typical Read more

Impurities are generated during hydrazinolysis cyclization, thermal treatment and incomplete recrystallization. They are divided into organic HPLC detectable impurities, toxic trace contaminants and inorganic impurities. 1. Major Organic Impurities 2. Toxic Trace Organic Contaminant Free hydrazine Originates from incomplete removal after cyclization. Highly toxic; preferentially consumes nicotinaldehyde and increases wastewater Read more

Core Conclusion First There is NO unified international official mandatory public standard (FAO, CIPAC, EU EC Regulation) specifically written for Triazinamide (CAS 136738-23-3). Triazinamide is classified as an agrochemical intermediate, not a final pesticide active ingredient. Global regulatory rules mainly control the finished Pymetrozine TC, not the intermediate itself. However, a Read more

Triazinamide itself is low-toxic heterocyclic solid, but its accompanying impurities (triazinone, free hydrazine, oligomeric tar, heavy metals, chloride, residual precursor) create distinct environmental risks during production, transportation, downstream synthesis and waste discharge. 1. Free Hydrazine — Highest Environmental Hazard Impurity 2. Deacetylated Triazinone & Heterocyclic Organic Impurities 3. Acetonyl Oxadiazolone Read more

Deacetylated triazinone originates from hydrolysis / thermal cleavage of the acetyl protecting group on triazinamide. The impurity is formed during hydrazinolysis reaction, hot recrystallization and vacuum drying. Below are systematic process control solutions. 1. Strict Reaction Parameter Control (Source Prevention — Most Critical) 2. Optimize Recrystallization & Purification Process 3. Read more

I. Basic Information and Physicochemical Properties Chinese Name: Triazinamide (Synonyms: Pymetrozine P4, 4-Acetamido-6-methyl-3-oxo-2,3,4,5-tetrahydro-1,2,4-triazine)English Name: N-(6-METHYL-3-OXO-2,3-DIHYDRO-1,2,4-TRIAZIN-4(5H)-YL)ACETAMIDECAS Number: 136738-23-3Molecular Formula & Weight: C₆H₁₀N₄O₂, 170.169Appearance: White or off-white crystalline powder.Physical Parameters: Density: 1.4 ± 0.1 g/cm³; Refractive Index: 1.630; LogP: -2.09; Polar Surface Area (PSA): 80.78.Solubility & Stability: Soluble in hot water and Read more

Chemical Product and Company Identification Chemical Name: Triazinamide (Chinese Synonyms: Pymetrozine P4, 4-Acetamido-6-methyl-3-oxo-2,3,4,5-tetrahydro-1,2,4-triazine)English Name: N-(6-METHYL-3-OXO-2,3-DIHYDRO-1,2,4-TRIAZIN-4(5H)-YL)ACETAMIDECAS Number: 136738-23-3Molecular Formula: C₆H₁₀N₄O₂HS Code: 2933699090 (Other compounds containing unfused triazine ring in the structure) Main Hazard Characteristics: This compound is thermally stable but may release toxic or irritating gases (such as ammonia and nitrogen) Read more

All impurities originate from incomplete hydrazinolysis ring expansion, thermal decomposition, side polymerization, raw material carryover and insufficient recrystallization purification. They are divided into reaction-derived organic impurities, inorganic impurities and physical contaminants. 1. Main Organic Process Impurities (Detectable by HPLC) 1.1 Deacetylated Triazinone (Critical Toxic Side Impurity) 1.2 Residual Acetonyl Oxadiazolone Read more

1. Main content of triazinamide determines pymetrozine total yield 2. Carryover impurities degrade pymetrozine purity and impurity profile Key harmful impurities in substandard triazinamide and their hazards 3. Crystal quality affects purification difficulty and production cost 4. Thermal unstable impurities cause pymetrozine discoloration and poor storage stability Crude triazinamide with Read more

1. Acetyl protective group stabilizes triazine ring and suppresses side impurities Triazinamide carries an acetyl blocking group on the N4 amino site of the triazine ring. 2. Dramatically improves pymetrozine total synthesis yield 3. Superior impurity control for pesticide registration compliance Premium export-grade triazinamide strictly limits single unknown impurity ≤0.15%, Read more