Manufacturer · REACH Registered
3,5-DimethylPyrazole
(CAS: 67-51-6)
High-purity intermediate for blocked isocyanates, nitrification control, and advanced chemical synthesis.
Provided by ANHUI ROYAL CHEMICAL:
Manufacturer
REACH EU
≥ 99.5% Purity
EU warehouse
What is 3,5‑Dimethylpyrazole (3,5‑DMP)?
3,5-Dimethylpyrazole (CAS 67-51-6) is a high-purity heterocyclic compound used in polyurethane systems, fertilizers, and advanced chemical synthesis.
Key Functions of 3,5‑DMP:
Blocked Isocyanate Agent
Forms stable adducts with NCO groups at room temperature.
Enables 1K polyurethane systems with long shelf life
Thermal deblocking above 110 °C
Simplifies processing in coatings and adhesives.
Nitrification Inhibition
Slows NH₄⁺ → NO₃⁻ conversion in fertilizers.
Improves nitrogen use efficiency.
Reduces nitrate leaching and N₂O emissions.
Supports EU regulation compliance
Chemical Intermediate
High-purity heterocycle for ligand and catalyst synthesis.
Ideal for specialty additives, dyes, advanced intermediates.
Used across fine chemicals, polymers, and industrial synthesis.
Relevant to agrochemical, pharmaceutical, and catalyst applications.
3,5-Dimethylpyrazole – Technical Specifications
| CAS No. | 67-51-6 |
| Appearance | Off-white crystalline |
| Assay (GC) | ≥ 99.5% |
| Typical Purity | 99.9% |
| Moisture | ≤ 0.5% (typical: 0.15–0.19%) |
| Melting Point | 105.0 – 108.0 °C |
| Shelf Life | 36 months from manufacturing date |
Industry Applications
Explore how 3,5‑DMP supports high-performance formulations across key industrial sectors.
Coatings & Paints
- Blocking agent in 1K polyurethane systems
- Thermal deblocking for controlled curing
- Enables lower bake temperatures
- Improves storage stability and finish quality
Adhesives & Sealants
- Blocked NCO systems for reactive adhesives
- Extended pot life and viscosity stability
- Cure-on-demand processing for staged assembly
Technical Textiles & Leather
- Flexible PU crosslinkers for fabric and leather
- Breathable, hydrophobic, durable coatings
- Compatible with aqueous application methods
- Cure temperatures below 130 °C
Fertilizers & Agro
- Nitrification inhibitor for ammonium-based fertilizers
- Delays NH₄⁺ to NO₃⁻ conversion in soil
- Improves nitrogen-use efficiency
- Reduces nitrate leaching and emissions
Water & Surface Protection
- Functional additive in corrosion-resistant systems
- Enhances barrier properties in PU coatings
- Applied in metalworking fluids and water treatment
Fine Chemicals & Intermediates
- Heterocyclic building block for advanced synthesis
- Used in ligands, catalysts, and specialty compounds
- Precursor for N‑1 derivatives with antibacterial activity
Why Work With Us?
Choosing Royal Chem as your 3,5-Dimethylpyrazole supplier means partnering with a manufacturer and supplier committed to quality, compliance, and technical reliability.
REACH-Registered Manufacturer.
Consistent High Purity and stable product.
Every batch is produced under strict QC controls, with certificates of analysis (CoA) and traceability on demand.
European Stock Availability: Material can be stored in EU-based warehouses for short lead times and local delivery.
Technical & Commercial Support.
Sample Availability
Trusted by Industry Leaders: Royal Chem has been supplying 3,5-DMP to global players in the coatings, adhesives, and agrochemical markets for over a decade.
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