Soil conditioner

High-Quality DMPP – Nitrification Inhibitor from Leading Manufacturer in China

  • Type nitrification inhibitor
  • E No.
  • CAS No. 202842-98-6
  • Qty in 20' FCL 10MTs
  • Packaging 25kg bags

Product Overview

DMPP (3,4-Dimethylpyrazole Phosphate) is a highly efficient nitrification inhibitor widely used in agriculture to improve nitrogen use efficiency and reduce nitrogen losses from the soil. With its ability to delay the conversion of ammonium to nitrate, DMPP helps retain nitrogen in a more stable form, making it available to crops for a longer period.

Jiangsu Khonor Chemicals Co., Limited offers high-purity DMPP with reliable quality, consistent supply, and global export support.


Specifications

ParameterSpecification
Product Name3,4-Dimethylpyrazole Phosphate
CAS Number202842-98-6
Molecular FormulaC5H10N2O4P
Molecular Weight196.12 g/mol
Purity≥ 98.5%
AppearanceWhite or off-white powder
SolubilitySoluble in water
pH (1% solution)6.0 – 8.0
Packaging25 kg fiber drum or customized

Production Method

DMPP is synthesized through the controlled cyclization of acetylacetone with dimethylamine and ammonia, followed by phosphorylation using phosphoric acid or phosphorylating agents. This process ensures high purity and stability of the final product.


Raw Materials

  • Acetylacetone

  • Dimethylamine

  • Ammonia

  • Phosphoric acid or phosphoric anhydride


Mechanism of Action

DMPP slows the activity of Nitrosomonas bacteria in the soil, which are responsible for oxidizing ammonium (NH₄⁺) into nitrate (NO₃⁻). By inhibiting this conversion, nitrogen remains in the ammonium form longer, reducing leaching and denitrification losses.


Applications

  • Agriculture:
    Used with nitrogen fertilizers such as urea, ammonium sulfate, or ammonium nitrate to improve nitrogen efficiency.

  • Fertilizer Industry:
    Added to NPK, UAN, or CRF formulations to enhance performance and sustainability.

  • Soil Management:
    Improves nitrogen retention, reduces greenhouse gas emissions (e.g., N₂O), and supports long-term soil fertility.


Benefits

  • Increases nitrogen use efficiency by 20–40%

  • Reduces nitrogen loss by leaching and denitrification

  • Enhances crop yield and root development

  • Environmentally friendly – reduces nitrate contamination and N₂O emissions

  • Compatible with most nitrogen fertilizers

  • Effective at low application rates (0.5–1.5 kg/ha)


Global Use by Trusted Brands

DMPP is widely adopted in Europe, China, North America, and South America. It is integrated into branded fertilizers by top agricultural companies for use in cereal crops, vegetables, fruits, and turf management.


Why Choose Us?

  • Professional manufacturer with strict quality control

  • High purity and consistent performance

  • Competitive pricing with OEM support

  • Fast global shipping and technical assistance

  • Free samples available for testing

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