2-PNP — root & shoot stimulation
Potassium 2-Nitrophenolate (CAS 824-38-4), 99.9% HPLC purity, orange crystalline solid.
Active Ingredients
Potassium Nitrophenolates — biostimulant actives at metric-ton scale.
UREGOLD manufactures the three agriculturally important Potassium Nitrophenolates — 2-PNP, 4-PNP and 5-PNP — at pharmaceutical-grade purity for global formulators of plant biostimulants, plant growth regulators and PNP coated urea.
4-PNP — flowering & fruit set
Potassium 4-Nitrophenolate (CAS 1124-31-8), 99.97% HPLC purity, yellow solid.
5-PNP — enzyme activation, vigor
Potassium 5-Nitroguaiacolate (CAS 458434-58-2), 99.69% HPLC purity, red to maroon-red solid.
Calibrated PNP blends
Custom 2-/4-/5-PNP ratios for biostimulants, foliar sprays and slow-release fertilizer coatings.
Pharma-grade QA
Every batch validated by HPLC purity tests and release-rate assays before dispatch.
Better than sodium nitrophenolates
Delivers crop-essential potassium with the same biostimulant nitrophenol — without sodium loading.
Field-proven
Why formulators choose UREGOLD PNPs
Reliable supply, regulatory-grade documentation and the agronomic profile your formulation needs.
- 99.69%–99.97% HPLC purity, batch-to-batch consistency
- Manufactured in metric-ton volumes for industrial customers
- Soluble in CHCl₃, water, methanol and DMSO
- Long-term storage stability at 0 °C; anticaking agent on request
- Suitable for biostimulants, PGRs and slow-release fertilizer coatings
- Global logistics and full technical data sheets on request
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Dig deeper into UREGOLD.
PNP coated urea
How UREGOLD uses Potassium Nitrophenolates to coat urea for slow nitrogen release.
Read moreMechanism of action
How the PNP shell activates with moisture and delivers a four-stage release profile.
Read moreField studies & research
Bio-efficacy trials with TNAU on paddy and maize using PNP coated urea.
Read moreFull product portfolio
PNP coated urea plus 2-PNP, 4-PNP and 5-PNP technical specifications.
Read moreSlow-release urea guide
How PNP coatings compare with polymer and sulfur coated ureas for modern agriculture.
Read moreBulk inquiry & samples
Request pricing, MOQ, COA and samples of 2-PNP, 4-PNP and 5-PNP.
Read moreFAQ
Potassium Nitrophenolates — Frequently asked questions
Frequently asked questions about Potassium Nitrophenolates and their use as plant biostimulants and slow-release fertilizer coatings.
Learn more
Browse all articles Related articles & guides.
Active Ingredients
Potassium Nitrophenolates (2-PNP, 4-PNP, 5-PNP) Explained
What Potassium Nitrophenolates actually are, how 2-PNP, 4-PNP and 5-PNP differ, and why this trio is the active backbone of modern bio-stimulant fertilizers.
Read article
Product Education
What is PNP Coated Urea? A Complete Guide for Modern Farmers
A practical introduction to PNP coated urea — what the coating does, why it improves nitrogen efficiency, and how it differs from conventional urea and neem-coated urea.
Read article
Agronomy
How to Improve Nitrogen Use Efficiency (NUE) on Your Farm
Nitrogen use efficiency (NUE) measures how much of the nitrogen you apply actually ends up in your crop. Here is how to lift it — without sacrificing yield.
Read article
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