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3,4-Dimethylpyrazole phosphate

3,4-Dimethylpyrazole phosphate Structure
3,4-Dimethylpyrazole phosphate structure
CAS No.
202842-98-6
Chemical Name:
3,4-Dimethylpyrazole phosphate
Synonyms
DPMM;3,4-dimethylpyrazole PPhosphate;3,4-Dimethyl-1H-pyrazole Phosphate;Ente;Entec;e phosphate;3,4-dimethyl-, phosphate;4-Dimethylpyrazole phosphate;3,4-Dimethylpyrazolephosphate;3,4-Dimethylpyrazoliumphosphate
CBNumber:
CB5548220
Molecular Formula:
C5H8N2.H3O4P
Molecular Weight:
194.13
MDL Number:
MFCD09842544
MOL File:
202842-98-6.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 04:31:22
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3,4-Dimethylpyrazole phosphate Properties

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
InChI InChI=1S/C5H8N2.H3O4P/c1-4-3-6-7-5(4)2;1-5(2,3)4/h3H,1-2H3,(H,6,7);(H3,1,2,3,4)
InChIKey LXKCHCXZBPLTAE-UHFFFAOYSA-N
SMILES CC1=CNN=C1C.P(O)(O)(O)=O

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)Exclamation Mark (GHS07)Health Hazard (GHS08)
GHS05,GHS07,GHS08
Signal word  Danger
Hazard statements  H318-H335-H361fd-H373-H302+H312+H332-H315
Precautionary statements  P280-P301+P312-P304+P340
HS Code  2933199090
REACH Registrations Active
NFPA 704
0
2 0

3,4-Dimethylpyrazole phosphate price More Price(77)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical D5668 3,4-Dimethyl-1H-pyrazole Phosphate 202842-98-6 5G $51 2026-04-30 Buy
TCI Chemical D5668 3,4-Dimethyl-1H-pyrazole Phosphate 202842-98-6 25G $174 2026-04-30 Buy
Cayman Chemical 21887 3,4-Dimethylpyrazole (phosphate) ≥98% 202842-98-6 5g $69 2026-04-30 Buy
Cayman Chemical 21887 3,4-Dimethylpyrazole (phosphate) ≥98% 202842-98-6 10g $120 2026-04-30 Buy
Cayman Chemical 21887 3,4-Dimethylpyrazole (phosphate) ≥98% 202842-98-6 25g $263 2026-04-30 Buy
Product number Packaging Price Buy
D5668 5G $51 Buy
D5668 25G $174 Buy
21887 5g $69 Buy
21887 10g $120 Buy
21887 25g $263 Buy

3,4-Dimethylpyrazole phosphate Chemical Properties, Uses, Production

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

Uses

A new nitrification inhibitor to be used on solid and in liquid fertilizers and slurry.

Uses

As a new nitrification inhibitor, 3,4-Dimethylpyrazole phosphate can 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.

References

[1] W. ZERULLA. 3,4-Dimethylpyrazole phosphate (DMPP) – a new nitrification inhibitor for agriculture and horticulture[J]. Biology and Fertility of Soils, 2001, 34 1: 79-84. DOI: 10.1007/s003740100380
[2] CHUNYAN LIU X Z Kai Wang. Effects of nitrification inhibitors (DCD and DMPP) on nitrous oxide emission, crop yield and nitrogen uptake in a wheat-maize cropping system[J]. Biogeosciences, 2013, 10 1: 2427-2437. DOI: 10.5194/bg-10-2427-2013
[3] MING YANG. Efficiency of two nitrification inhibitors (dicyandiamide and 3, 4-dimethypyrazole phosphate) on soil nitrogen transformations and plant productivity: a meta-analysis[J]. Scientific Reports, 2016, 72 1. DOI: 10.1038/srep22075
[4] XIUZHEN SHI. Effects of the Nitrification Inhibitor 3,4-Dimethylpyrazole Phosphate on Nitrification and Nitrifiers in Two Contrasting Agricultural Soils.[J]. Applied and Environmental Microbiology, 2016: 5236-5248. DOI: 10.1128/aem.01031-16
[5] CLEMENS SCHEER. Nitrification inhibitors can increase post-harvest nitrous oxide emissions in an intensive vegetable production system.[J]. Scientific Reports, 2017: 43677. DOI: 10.1038/srep43677
[6] XIANWANG KONG . 3,4-Dimethylpyrazole phosphate (DMPP) reduces activity of ammonia oxidizers without adverse effects on non-target soil microorganisms and functions[J]. Applied Soil Ecology, 2016, 105: Pages 67-75. DOI: 10.1016/j.apsoil.2016.03.018

3,4-Dimethylpyrazole phosphate Preparation Products And Raw materials

Raw materials

Hydrazinium hydroxide solution Phosphoric acid 3,4-Dimethyl pyrazole Sodium 2-Butanone
Hydrazine hydrate Sodium Methoxide Diethyl ether Formic acid isopropyl ester Acetic acid
Methanol Isopropyl alcohol Methyl formate Petroleum ether

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Preparation Products

3,4-Dimethylpyrazole phosphate Suppliers

Global Suppliers ( 270)
Supplier Tel Email Country ProdList Advantage
Joyman BIOTECH (Lianyungang) Co., Ltd. 0518-85817797 18661269107 info@joy-man.com China 41 58
wuhan geeyeschem chemical 027-1537705-6467 15377056467 3410849474@qq.com China 2018 58
Wuhan Jiyesheng Chemical Co., Ltd 15927120776 3337315774@qq.com China 2123 58
Wuhan Ji Ye Sheng Chemical Co., Ltd. 15387013945 1806989108@qq.com China 2163 58
WUHAN GEEYESCHEM CHEMICAL CO., LTD. 15927657268 1916972268@qq.com China 2182 58
Shandong Haohao Biotechnology Co. , Ltd. 13953762558 zcy0719@163.com China 35 58
Hubei Yuanmeng Biological Technology Co., Ltd. 027-68897569 18120462897 2225602544@qq.com China 4337 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Shanghai Longsheng chemical Co.,Ltd. 58099637 13585536065 sales@shlschem.com China 9880 59
Supplier Advantage
Joyman BIOTECH (Lianyungang) Co., Ltd. 58
wuhan geeyeschem chemical 58
Wuhan Jiyesheng Chemical Co., Ltd 58
Wuhan Ji Ye Sheng Chemical Co., Ltd. 58
WUHAN GEEYESCHEM CHEMICAL CO., LTD. 58
Shandong Haohao Biotechnology Co. , Ltd. 58
Hubei Yuanmeng Biological Technology Co., Ltd. 58
J & K SCIENTIFIC LTD. 76
Energy Chemical 61
Shanghai Longsheng chemical Co.,Ltd. 59

View Latest Price from 3,4-Dimethylpyrazole phosphate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3,4-Dimethylpyrazole phosphate pictures 2026-05-28 3,4-Dimethylpyrazole phosphate
202842-98-6
 $50.00-100.00 1KG 99% 10000kg Hebei Chuanghai Biotechnology Co,.LTD
3,4-Dimethylpyrazole phosphate pictures 2026-03-20 3,4-Dimethylpyrazole phosphate
202842-98-6
 $10.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
3,4-Dimethylpyrazole phosphate pictures 2025-12-29 3,4-Dimethylpyrazole phosphate
202842-98-6
 1kg 99% Changzhou waston chemical technology Co.,Ltd

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1H-Pyrazole, 3,4-dimethyl-, phosphate DMPP/ 3,4-Dimethylpyrazole phosphate 3,4-Dimethylpyrazole phosphate, >=98% 3,4-Dimethyl-1H-Pyrazolium Dihydrogen Phosphate (DMPP) 3,4-Dimethyl-1H-pyrazol-1-ium dihydrogenphosphate 3,4-Dimethylpyrazolephosphate 4,5-dimethyl-1H-pyrazole,phosphoric acid 3,4-DIMETHYL-1H-PYRAZOLIUM DIHYDROGEN PHOSPHATE 3,4-Dimethyl-1H-pyrazole Phosphate Ente 1H-Pyrazole, 3,4-dimethyl-, phosphate (1:1) 3,4-Dimethyl-1H-pyrazoliumdihydrogenphosphat Entec 3,4-Dimethyl-1H-pyrazolium dihydrogen phosphate ,97% 3,4-dimethylpyrazole phosphate (DMPP) e phosphate 3,4-Dimethyl-1H-pyrazole phosphate (1:1) DPMM 4-Dimethylpyrazole phosphate 4,5-dimethyl-1H-pyrazole,phosphoricaci 3,4-Dimethyl-1H-pyrazole dihydrophosphate 3,4-Dimethylpyrazole Phosphate Salt 3,4-Dimethylpyrazoliumphosphate 1H-Fyrazole,3,4-dimethyl-phosphate(1:1) 3,4-dimethyl-, phosphate 3,4-dimethylpyrazole PPhosphate 202842-98-6 C5H8N2H3O4P C5H8N2H3PO4 C5H11N2O4P Bases & Related Reagents Heterocycles Inhibitors Nucleotides All Inhibitors