3,4-Dimethylpyrazole phosphate
- CAS NO.:202842-98-6
- Empirical Formula: C5H8N2.H3O4P
- Molecular Weight: 194.13
- MDL number: MFCD09842544
- EINECS: 2017-001-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 04:31:22
What is 3,4-Dimethylpyrazole phosphate?
Description
3,4-Dimethylpyrazole (phosphate) (3,4-DMPP) is an inhibitor of nitrification deemed safe by extensive standard toxicology and ecotoxicology tests. When utilized on crops, 3,4-DMPP prevents nitrogen loss from soil, increases nitrogen use efficiency, and boosts crop yields. However, a meta-analysis found no influence of 3,4-DMPP on net crop yield, although it may boost yields in alkaline soil. 3,4-DMPP may be less effective in acidic soils and in the post-harvest period. DMPP interferes with ammonia monooxygenase from ammonia-oxidizing bacteria (AOB) and archaea (AOA) but may not directly affect AOB, AOA, and non-target populations.
Chemical properties
Pale Beige Solid
The Uses of 3,4-Dimethylpyrazole phosphate
As a new nitrification inhibitor, 3,4-Dimethylpyrazole phosphate can be used on solid and in liquid fertilizers and slurry
The Uses of 3,4-Dimethylpyrazole phosphate
A new nitrification inhibitor to be used on solid and in liquid fertilizers and slurry.
Definition
ChEBI: 3,4-dimethyl-1H-pyrazole phosphate is a phosphate salt obtained by reacting 3,4-dimethyl-1H-pyrazole with one equivalent of phosphoric acid. It is a nitrification inhibitor and when used on crops, it prevents nitrogen loss from soil, increases nitrogen use efficiency, and boosts crop yields. It has a role as a nitrification inhibitor. It contains a 3,4-dimethyl-1H-pyrazole.
Properties of 3,4-Dimethylpyrazole phosphate
| Melting point: | 167-169°C |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | Methanol (Slightly), Water |
| form | Solid |
| color | White to Pale Beige |
| Stability: | Hygroscopic |
Safety information for 3,4-Dimethylpyrazole phosphate
| Signal word | Danger |
| Pictogram(s) |
![]() Corrosion Corrosives GHS05 ![]() Exclamation Mark Irritant GHS07 ![]() Health Hazard GHS08 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H373:Specific target organ toxicity, repeated exposure |
| Precautionary Statement Codes |
P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. |
Computed Descriptors for 3,4-Dimethylpyrazole phosphate
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