We unleash your business potential by maximize the business innovation.
Send EmailDimethylpyrazole Phosphate, 3,4-Dimethylpyrazole Phosphate, Pyrazole-based Nitrification Inhibitor, DMPP, 202842-98-6
🌱 DMPP in Agriculture: Technical Overview
🧪 What is DMPP?
-
Full Name: 3,4-Dimethylpyrazole phosphate
-
CAS Number: 202842-98-6
-
Function: A nitrification inhibitor used in fertilizers to slow the conversion of ammonium (NH₄⁺) to nitrate (NO₃⁻), thereby reducing nitrogen loss and improving nutrient efficiency.
✅ Benefits of DMPP
| Benefit | Description |
|---|---|
| Reduces Nitrogen Loss | Minimizes leaching and volatilization by stabilizing ammonium nitrogen. |
| Improves Crop Yield | Enhances root development and nitrogen uptake, leading to 10–20% higher yields. |
| Environmental Protection | Reduces nitrate contamination in groundwater. |
| Efficient Fertilizer Use | Extends nitrogen availability for 6–10 weeks. |
| Better Plant Health | Promotes deeper green foliage and balanced growth. |
⚠️ Risks and Precautions
| Risk | Description |
|---|---|
| Microbial Disruption | May suppress soil microbial activity involved in nitrification. |
| Surface Application Failure | Ineffective if not incorporated into soil or followed by irrigation. |
| Overdosage | Excessive use may hinder plant development or soil balance. |
| Temperature Sensitivity | Volatility increases above 30 °C; optimal effect at neutral pH. |
| Limited Duration | Effectiveness fades after 6–10 weeks; not suitable for long-term nitrogen control. |
🧑🌾 Application Guidelines
📌 Timing
-
Before Sowing: Mixed with base fertilizer during soil preparation.
-
At Sowing: Applied simultaneously via drill or broadcast.
-
After Sowing: Can be applied with top dressing, ideally before rainfall or irrigation.
📌 Method
-
Granular Form: Pre-mixed in NPK fertilizers (e.g., NovaTec, Inotec).
-
Liquid Form: Added to fertigation systems or sprayed directly.
📌 Dosage Examples
| Product | DMPP Content | Application Rate | Crop Type |
|---|---|---|---|
| NovaTec Classic | ~0.8% | 25–40 kg/ha | Cereals, corn, sunflower |
| Inotec 15-15-15 | ~1.0% | 20–30 kg/ha | Vegetables, vineyards |
| Nova Complex Optima | ~0.5% | 30–50 kg/ha | Greenhouse, seedlings |
🏭 Production Process
| Step | Description |
|---|---|
| Raw Materials | 3,4-Dimethylpyrazole + Phosphorylating agent |
| Reaction | Condensation and phosphorylation under controlled temperature (50–80 °C) |
| Purification | Crystallization, filtration, solvent extraction |
| Drying & Packaging | Final product in powder or liquid form, packed in PE bags, drums, or IBCs |
Major Producers: BASF (Germany), COMPO Expert, Chinese manufacturers (e.g., NBINNO, Hebei)
🔄 Alternatives to DMPP
| Compound | CAS No | Duration | Notes |
|---|---|---|---|
| DCD (Dicyandiamide) | 461-58-5 | 4–6 weeks | Cost-effective, widely used |
| NPPT (Nitrapyrin) | 1929-82-4 | 6–8 weeks | Effective in corn and wheat |
| DMPSA | 202842-98-6 | 8–12 weeks | Environmentally friendly |
| NBPT | 94317-64-3 | 1–2 weeks | Urea stabilizer, not a nitrification inhibitor |
🧾 Synonyms and Identifiers for DMPP
| Type | Name / Code |
|---|---|
| IUPAC Name | 3,4-Dimethyl-1H-pyrazole phosphate |
| Common Name | DMPP |
| Chemical Class | Pyrazole-based nitrification inhibitor |
| CAS Number | 202842-98-6 |
| EC Number | 606-013-00-4 |
| REACH Registration | Often listed under “nitrification inhibitors” or “soil additives” |
| Trade Names | NovaTec® (COMPO Expert), Inotec® (Univera), Optima® (ICL) |
| Fertilizer Labeling | Sometimes listed as “stabilized nitrogen” or “N-stabilizer” |
