Sourcing 2,3-Difluoro-6-nitrophenol: Purity, COA & Supply Chain
Technical Specifications and Purity Grades of 2,3-Difluoro-6-nitrophenol (CAS 82419-26-9)
When sourcing 2,3-Difluoro-6-nitrophenol, a fluorinated phenol derivative widely used as an organic building block in pharmaceutical and agrochemical synthesis, procurement teams must first establish the required purity grade. This nitrophenol intermediate is typically offered at industrial purities of 98% and 99%, with the higher grade often specified for sensitive SNAr reactions where trace impurities can impact yield. As a drop-in replacement for existing supply chains, our product matches the technical parameters of established global manufacturers while offering cost-efficiency and reliable logistics from NINGBO INNO PHARMCHEM CO.,LTD.
The synthesis route for this difluoronitrophenol involves controlled nitration and fluorination steps, and the resulting material is a crystalline solid at ambient conditions. For buyers evaluating alternatives, the key is confirming that the 6-Nitro-2-3-difluorophenol meets the same performance benchmarks. We recommend requesting a batch-specific COA to verify purity, melting point, and residual solvent levels against your process requirements.
| Parameter | Industrial Grade (98%) | High Purity Grade (99%) |
|---|---|---|
| Assay (HPLC) | ≥98.0% | ≥99.0% |
| Melting Point | Please refer to COA | Please refer to COA |
| Water Content (KF) | ≤0.5% | ≤0.3% |
| Appearance | Off-white to pale yellow crystalline powder | White to off-white crystalline powder |
Note: Exact specifications may vary; always consult the batch-specific COA. The 99% grade is particularly critical when the 2-nitro-5-6-difluorophenol is used as a key starting material in multi-step syntheses where even minor impurities can lead to side reactions.
Critical Certificate of Analysis (COA) Parameters for Industrial Sourcing
A comprehensive COA is the foundation of quality assurance when sourcing 2,3-Difluoro-6-nitrophenol. Beyond the standard assay, experienced chemical engineers scrutinize several non-standard parameters that can affect downstream processing. For instance, trace iron content (often below 10 ppm) is crucial because it can catalyze unwanted oxidation in subsequent reactions. Similarly, the isomeric purity—specifically the absence of the 2,5-difluoro isomer—must be confirmed via HPLC or GC, as this impurity can alter reaction kinetics in SNAr cyclization steps. We have observed that in some manufacturing processes, residual acetic acid from the nitration step can persist, leading to off-gassing during storage; our COA includes a limit for residual acids to prevent such field issues.
When comparing suppliers, request a COA that includes:
- Assay by HPLC/GC – with chromatographic purity and individual impurity profiles.
- Melting range – a narrow range indicates high crystalline purity.
- Loss on drying – critical for moisture-sensitive applications.
- Residual solvents – per ICH Q3C guidelines, especially if the material is used in API synthesis.
- Heavy metals – typically controlled to <20 ppm for lead, arsenic, etc.
For those optimizing SNAr reactions, the article on SNAr cyclization optimization with 2,3-Difluoro-6-nitrophenol provides deeper insights into how impurity profiles affect reaction outcomes.
Bulk Packaging, Handling, and Non-Standard Field Behavior
Industrial procurement of 2,3-Difluoro-6-nitrophenol requires careful attention to packaging and handling to maintain integrity during transit and storage. Standard packaging includes 25 kg fiber drums with inner PE liners, but for tonnage orders, we offer 210L steel drums or IBC totes. All packaging is UN-approved for hazardous goods, as this compound is classified as a solid irritant. From our field experience, one non-standard behavior to note is the material's tendency to form a hard cake under prolonged storage at temperatures below 5°C. This does not affect chemical purity but can complicate dispensing. To mitigate this, we recommend storing at 15–25°C and gently breaking up any agglomerates before use. Additionally, the product is hygroscopic; exposure to ambient moisture can lead to clumping and a slight color shift from off-white to pale yellow, which is cosmetic and does not impact reactivity.
For logistics, we coordinate with major freight forwarders to ensure on-time delivery from our Ningbo facilities. While we do not claim EU REACH compliance, our packaging meets international transport regulations. For Japanese-speaking clients, the article on SNAr cyclization optimization: 2,3-Difluoro-6-nitrophenol offers additional technical guidance.
Supply Chain Visibility and Tier 2/3 Risk Mitigation in Sourcing 2,3-Difluoro-6-nitrophenol
In today's volatile market, sourcing 2,3-Difluoro-6-nitrophenol demands more than a competitive bulk price; it requires deep supply chain visibility. As a Tier 1 supplier, NINGBO INNO PHARMCHEM CO.,LTD. understands that risks often lurk in Tier 2 and Tier 3 suppliers—the producers of raw materials like 2,4-difluoronitrobenzene and fluorinating agents. A disruption at a Tier 3 fluorspar mine, for example, can cascade into shortages of this nitrophenol intermediate. To mitigate such risks, we have mapped our supplier network and maintain strategic safety stocks of critical precursors. This proactive approach ensures continuity of supply even when global logistics face strain.
For procurement managers, evaluating a supplier's Tier 2/3 visibility is essential. Ask potential partners: Do they audit their sub-tier suppliers? Can they provide alternative synthesis routes in case of raw material scarcity? Our manufacturing process for 2,3-Difluoro-6-nitrophenol is backed by dual sourcing for key starting materials, reducing dependency on single origins. This resilience is a direct result of applying supplier tiering principles, where we categorize and monitor suppliers based on their criticality to our production. By choosing a supplier with robust tier visibility, you protect your own production schedules from unforeseen delays and quality issues.
Furthermore, the quality assurance of this organic building block extends beyond the COA. We conduct regular on-site audits of our Tier 2 fluorination partners to verify their process controls and environmental management—without making any claims about REACH or certifications. This hands-on approach ensures that every batch of 2,3-Difluoro-6-nitrophenol meets the industrial purity and consistency required for your applications. For a deeper dive into the synthesis and optimization, explore our product page: high-purity 2,3-Difluoro-6-nitrophenol synthesis intermediate.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for 2,3-Difluoro-6-nitrophenol?
Our standard MOQ is 1 kg for sample evaluation and 25 kg for commercial orders. For tonnage quantities, we can accommodate flexible terms. Please contact our sales team with your specific requirements.
How do you ensure batch-to-batch consistency in industrial purity?
We employ rigorous in-process controls and release testing per validated analytical methods. Each batch is accompanied by a COA detailing assay, melting point, and impurity profile. Our manufacturing process is designed to minimize variability, and we retain retention samples for three years.
What are the typical lead times for bulk orders?
Lead times vary based on order size and destination. For 25–100 kg, ex-works Ningbo is typically 2–3 weeks. For tonnage orders, please allow 4–6 weeks. We can provide expedited options upon request.
Can you provide custom packaging or labeling?
Yes, we offer custom labeling and packaging solutions, including private labels and specific drum sizes. Additional charges may apply. Discuss your needs with our logistics team.
Is 2,3-Difluoro-6-nitrophenol classified as a hazardous material for transport?
Yes, it is classified as a hazardous solid (irritant) under UN regulations. We ship in UN-approved packaging with all required documentation, including SDS and dangerous goods declarations.
Sourcing and Technical Support
In summary, sourcing 2,3-Difluoro-6-nitrophenol at industrial scale requires a partner who not only delivers consistent quality but also understands the complexities of supply chain dynamics. From non-standard field behaviors like low-temperature caking to the criticality of Tier 2/3 visibility, our team brings hands-on experience to every shipment. We invite you to review our batch-specific COAs and discuss how our drop-in replacement can streamline your procurement. Ready to optimize your supply chain? Reach out to our logistics team today for comprehensive specifications and tonnage availability.