XtalFluor-E: DAST Drop-In Replacement for API Synthesis
Technical Specs & Purity Grades: ≥98.5% Assay & ICH Q3D Heavy Metal Limits for API-Grade Fluorinating Agents
NINGBO INNO PHARMCHEM CO.,LTD. positions XtalFluor-E as a direct DAST drop-in replacement for fluorination reactions in organic synthesis. The technical profile of our Diethylaminodifluorosulfonium tetrafluoroborate matches standard DAST specifications while delivering enhanced supply chain reliability and cost-efficiency. The assay is maintained at ≥98.5%, ensuring consistent reagent activity across batches. Heavy metal limits adhere to ICH Q3D guidelines for elemental impurities, making this fluorinating agent suitable for API-grade applications where metal contamination must be strictly controlled. Please refer to the batch-specific COA for exact elemental impurity quantification per lot.
Field Engineering Note: Thermal Viscosity Shift and Crystallization Management. Non-standard parameter analysis reveals that XtalFluor-E viscosity increases non-linearly as temperatures approach -10°C. In winter transit scenarios within unheated containers, partial crystallization may occur at the liquid-gas interface within the drum headspace. This is a reversible physical phase change, not thermal degradation. Engineering recommendation: Do not force-open drums exhibiting surface crystallization. Allow 24-hour equilibration at 20°C before opening. The material re-homogenizes without assay loss. Procurement teams should note this behavior to prevent false batch rejections in cold climates. Please refer to the batch-specific COA for thermal degradation thresholds.
| Parameter | Specification | Test Method |
|---|---|---|
| Assay | ≥98.5% | HPLC |
| Water Content | ≤0.1% | Karl Fischer |
| Chloride | ≤50 ppm | Ion Chromatography |
| Heavy Metals | ICH Q3D Limits | ICP-MS |
| Appearance | Colorless to Pale Yellow Liquid | Visual |
Solvent Compatibility Metrics: DMF, DCM & Acetonitrile Stability Profiles at 0°C to 25°C Reaction Conditions
Solvent compatibility is a critical factor for process scalability and reaction kinetics. XtalFluor-E exhibits full miscibility and stability in DMF, DCM, and acetonitrile across the 0°C to 25°C range. Unlike some sulfonium salts that precipitate in DCM at sub-ambient temperatures, our formulation maintains homogeneity, ensuring consistent reaction rates. This stability supports flexible reaction conditions for pharmaceutical intermediates and agrochemical reagents. For detailed stability data, review the technical dossier for our XtalFluor-E advanced fluorinating reagent.
In the context of solvent swap strategies, where manufacturers evaluate alternative solvent matrices, XtalFluor-E maintains compatibility. The reagent does not introduce additional solvent-related impurities that would complicate residual solvent analysis. Stability profiles confirm no significant hydrolysis or decomposition over 48 hours in these media, allowing for seamless integration into existing synthesis routes without re-validation of solvent systems. This performance parity with DAST enables a direct DAST alternative transition with minimal process disruption.
Byproduct Management Protocols: Difluoromethyl Sulfide & Tetrafluoroborate Residue Quantification via IC & NMR
Efficient byproduct management reduces downstream purification burden and supports cleaner synthesis routes. The fluorination reaction generates difluoromethyl sulfide as a byproduct. We provide quantification protocols using Ion Chromatography (IC) for tetrafluoroborate residue and Nuclear Magnetic Resonance (NMR) for organic byproducts. This analytical rigor assists R&D teams in optimizing workup procedures for high-purity manufacturing processes.
Quantification of tetrafluoroborate residue is performed via IC with detection limits optimized to ensure residual anions do not interfere with subsequent crystallization steps. For difluoromethyl sulfide, NMR analysis provides structural confirmation and quantification. Residue levels are controlled to minimize impact on final product purity. These protocols are essential for pharmaceutical intermediates where impurity profiles must be tightly controlled, facilitating efficient separation and reducing the overall waste burden of the synthesis route.
COA Parameters & Batch Consistency: Water Content ≤0.1%, Chloride ≤50 ppm & ≤1.5% Inter-Batch Variance
Batch consistency is verified through rigorous quality control protocols. Water content is maintained at ≤0.1% to prevent premature hydrolysis of the sulfonium salt. Chloride levels are controlled to ≤50 ppm to avoid catalytic interference in sensitive reaction steps and to prevent corrosion in stainless steel reactors. Inter-batch variance is statistically controlled to ≤1.5% for assay and key impurities, ensuring predictable performance across production runs.
This consistency is achieved through precise temperature control during manufacturing and rigorous filtration to remove particulate matter. Each shipment is accompanied by a COA detailing batch-specific results. Procurement managers can rely on these specifications for quality assurance planning. The ≤1.5% variance metric supports industrial purity standards, allowing for robust process validation and reduced risk of out-of-spec batches in API synthesis.
Bulk Packaging Specifications: 25kg Nitrogen-Purged HDPE/Aluminum Drums with Desiccant & Moisture-Barrier Requirements
Packaging is designed to ensure product integrity during storage and transit. XtalFluor-E is supplied in 25kg drums, available in HDPE or Aluminum construction. Drums are nitrogen-purged immediately after filling to displace oxygen and moisture. A desiccant pack is integrated into the headspace to absorb any trace moisture ingress. Moisture-barrier requirements are met through drum construction and sealing integrity.
HDPE drums provide chemical resistance, while aluminum drums offer enhanced mechanical protection. Shipping is conducted via standard freight methods. Documentation includes commercial invoices and packing lists. Physical handling instructions emphasize keeping drums upright and sealed until use. No regulatory certifications or environmental guarantees are claimed; focus remains on physical protection and moisture exclusion to preserve reagent quality.
Frequently Asked Questions
What is the minimum order quantity for XtalFluor-E?
The minimum order quantity is 25kg, corresponding to a single drum unit. Bulk pricing tiers are available for orders exceeding 100kg. Contact our sales team for volume discounts and commercial terms.
How does XtalFluor-E compare to DAST in terms of technical performance?
XtalFluor-E is engineered as a drop-in replacement for DAST. It offers identical technical parameters, including assay purity and reactivity profiles. The primary advantages are cost-efficiency and supply chain reliability, with no performance compromise in API synthesis applications.
Can I obtain a batch-specific COA before shipment?
Yes. A batch-specific COA is generated for every production lot. You may request a draft COA for review prior to final dispatch to verify compliance with your internal specifications and quality requirements.
What are the standard lead times for bulk orders?
Standard lead times depend on current inventory levels and order volume. For 25kg to 100kg orders, lead times are typically 2-3 weeks. Larger volumes require production scheduling. Please request a formal quote for precise delivery timelines and availability.
Sourcing and Technical Support
NINGBO INNO PHARMCHEM CO.,LTD. delivers XtalFluor-E with a focus on technical precision, batch consistency, and supply reliability. Our manufacturing process ensures consistent quality for fluorinating agent applications in API synthesis and organic synthesis. Partner with a verified manufacturer. Connect with our procurement specialists to lock in your supply agreements.