2'-Hydroxyacetophenone Bulk Specs: Sigma H18607 Replacement
2'-Hydroxyacetophenone Technical Specifications: Density, Refractive Index, and Thermal Stability Metrics
2'-Hydroxyacetophenone (CAS: 118-93-4), frequently referenced in formulation labs as o-Hydroxyacetophenone or 1-(2-Hydroxyphenyl)Ethanone, requires precise physical parameter control to maintain downstream reaction kinetics. At NINGBO INNO PHARMCHEM CO.,LTD., we engineer our bulk output to match the exact physical profile required for pharmaceutical and fine chemical synthesis. The standard density registers at 1.131 g/mL at 25 °C, with a refractive index of n20/D 1.558. These metrics remain stable across standard storage conditions, provided the material is shielded from prolonged oxidative exposure.
From a practical engineering standpoint, the melting point range of 3-6 °C introduces specific handling requirements that are rarely detailed in standard laboratory datasheets. During winter transit or storage in unheated warehouses, the compound frequently undergoes partial crystallization near the lower threshold of this range. This phase shift increases apparent viscosity and can impede standard peristaltic or centrifugal pump transfer lines. Our technical teams recommend maintaining bulk storage above 10 °C or utilizing jacketed transfer lines with low-grade thermal insulation to prevent line blockages. Additionally, while the boiling point sits at 213 °C at 717 mmHg, thermal degradation initiates rapidly above 220 °C under atmospheric pressure, leading to phenolic coupling and dark coloration. Monitoring distillation head temperatures strictly below 215 °C under reduced pressure preserves the structural integrity required for sensitive coupling reactions.
For complete physical parameter validation, please refer to the batch-specific COA provided with every shipment. Detailed chromatographic retention times and exact density measurements are documented per production lot to ensure your R&D and manufacturing teams can maintain consistent process parameters.
COA Compliance and Purity Grades: HPLC Assay ≥99.5%, Residual Solvents, and Heavy Metal Thresholds
Industrial purity in 2'-hydroxyacetophenone production hinges on rigorous isomer separation and solvent recovery protocols. Our manufacturing process utilizes optimized crystallization and fractional distillation stages to isolate the ortho-isomer from para and meta variants, ensuring an HPLC assay consistently meets or exceeds ≥99.5%. This level of purity is critical when the compound serves as a precursor for active pharmaceutical ingredients or high-performance fragrance intermediates, where trace isomeric contamination can alter reaction yields or final product organoleptic profiles.
Residual solvent limits and heavy metal thresholds are strictly controlled during the final polishing stages. However, acceptable limits vary depending on your specific end-use application and regional regulatory frameworks. We do not publish static thresholds for these parameters because they are validated against your required specification sheet. Please refer to the batch-specific COA for exact residual solvent quantification (typically analyzed via GC-FID) and heavy metal screening results (analyzed via ICP-MS). Our quality assurance protocols ensure that every technical grade shipment aligns with the exact impurity profile your procurement team requires.
We maintain transparent documentation practices. If your formulation requires tighter control over specific trace impurities, our engineering team can adjust the final washing and drying cycles to meet your custom specification. Contact our technical support division to align our production parameters with your internal quality standards.
Industrial Bulk Packaging Standards: Nitrogen-Purged HDPE Drums, IBC Totes, and Moisture Control Protocols
Bulk chemical logistics demand packaging that preserves chemical stability during transit and warehousing. NINGBO INNO PHARMCHEM CO.,LTD. ships 2'-hydroxyacetophenone in 210L HDPE drums and 1000L IBC totes, both engineered for chemical resistance and structural durability. Each container undergoes a nitrogen-purging protocol prior to sealing. This displacement of ambient oxygen prevents oxidative yellowing, which is a common degradation pathway for phenolic ketones exposed to air over extended periods.
Moisture control is equally critical. Trace water ingress accelerates hydrolysis and can promote microbial growth in secondary handling environments. Our packaging utilizes double-sealed polyethylene liners with tamper-evident caps, ensuring the internal atmosphere remains inert. For international freight, we coordinate standard FCL and LCL ocean shipments, with air freight available for urgent sample or pilot batch requirements. All containers are palletized and shrink-wrapped to prevent mechanical damage during container loading and unloading. We do not provide environmental compliance documentation; our focus remains strictly on physical containment integrity and safe transport methodologies.
Procurement managers should verify container compatibility with their existing storage infrastructure. Our standard drum and IBC dimensions align with global pallet standards, facilitating seamless integration into automated warehouse systems and forklift handling protocols. For detailed packaging specifications and weight tolerances, please refer to the batch-specific COA and shipping manifest.
Sigma-Aldrich H18607 Drop-in Replacement Validation: Cross-Reference Chromatography and Batch Consistency Data
Transitioning from laboratory-scale reagents to industrial bulk supply requires exact parameter matching to avoid process revalidation. Our 2'-hydroxyacetophenone is engineered as a direct drop-in replacement for Sigma-Aldrich H18607, delivering identical technical parameters at a significantly reduced cost-per-kilogram. We understand that procurement teams prioritize supply chain reliability and consistent batch-to-batch performance over minor specification variances. Our production lines are calibrated to replicate the exact density, refractive index, and assay purity documented in the H18607 datasheet, ensuring your existing SOPs remain unchanged.
Cross-reference chromatography validation confirms that our bulk material exhibits identical retention profiles and peak symmetry when analyzed under standard HPLC conditions. This consistency eliminates the need for reformulation or process adjustment when scaling from milligram-scale testing to kilogram-scale manufacturing. By sourcing directly from a dedicated global manufacturer, you eliminate intermediary markups and secure long-term supply chain stability. The table below outlines the direct parameter comparison between the laboratory reference standard and our bulk industrial output.
| Technical Parameter | Sigma-Aldrich H18607 Reference | NINGBO INNO PHARMCHEM Bulk Output |
|---|---|---|
| HPLC Assay | ≥99.0% | ≥99.5% (Please refer to the batch-specific COA) |
| Density (20-25 °C) | 1.131 - 1.133 g/mL | 1.131 - 1.133 g/mL (Please refer to the batch-specific COA) |
| Refractive Index (n20/D) | 1.558 | 1.558 (Please refer to the batch-specific COA) |
| Melting Point | 3-6 °C | 3-6 °C (Please refer to the batch-specific COA) |
| Boiling Point | 213 °C / 717 mmHg | 213 °C / 717 mmHg (Please refer to the batch-specific COA) |
| Vapor Pressure (20 °C) | ~0.2 mmHg | ~0.2 mmHg (Please refer to the batch-specific COA) |
For complete technical documentation and sample requests, visit our 2'-hydroxyacetophenone product page. Our engineering team provides full chromatographic overlays and stability data upon request to support your internal qualification process.
Frequently Asked Questions
What is the minimum order quantity for bulk 2'-hydroxyacetophenone?
Our standard minimum order quantity for industrial bulk shipments is 25 kilograms. Orders below this threshold are processed as sample or pilot batches and may incur additional handling fees. For long-term supply agreements, we accommodate flexible MOQ structures based on your quarterly production forecasts.
Do you provide third-party testing reports for each shipment?
Yes. Every commercial shipment includes a comprehensive batch-specific COA generated by our in-house quality control laboratory. We also provide independent third-party testing reports from accredited analytical firms upon request. These documents detail exact HPLC assay results, residual solvent quantification, and heavy metal screening data.
How does your pricing structure scale for long-term contracts?
Pricing is determined by volume commitments, payment terms, and freight routing. We offer tiered pricing models that reduce the cost-per-kilogram as annual tonnage increases. Procurement managers can request a customized quotation that aligns with your inventory turnover rates and budget cycles. Our commercial team provides transparent pricing without hidden intermediary markups.
Sourcing and Technical Support
Scaling your 2'-hydroxyacetophenone supply chain requires a partner that prioritizes technical precision and logistical reliability. NINGBO INNO PHARMCHEM CO.,LTD. delivers consistent industrial purity, exact parameter matching, and secure bulk packaging designed for modern manufacturing environments. Our engineering and commercial teams work directly with your procurement and R&D departments to ensure seamless integration into your existing production workflows. Partner with a verified manufacturer. Connect with our procurement specialists to lock in your supply agreements.