Isothiocyanic Acid P-Chlorophenyl Ester COA & High Assay
The global demand for p-Chlorophenyl isothiocyanate continues to rise across agrochemical and pharmaceutical sectors, driven by its utility as a versatile chemical intermediate. Supply chain stability remains a critical concern for procurement executives seeking reliable partners for large-scale production. Understanding market dynamics is essential, as highlighted in our analysis of 1-Chloro-4-Isothiocyanatobenzene Bulk Price Global Manufacturer 2026. NINGBO INNO PHARMCHEM CO.,LTD. maintains robust inventory levels to ensure uninterrupted delivery of this vital organic building block to R&D and manufacturing facilities worldwide.
Troubleshooting common impurities and yield issues
Achieving consistent industrial purity requires precise control over the manufacturing process. Deviations in reaction conditions often lead to specific byproducts that compromise the quality of Isothiocyanic acid p-chlorophenyl ester.
Managing N-p-chlorophenylrhodanine formation
One prevalent issue during synthesis is the formation of rhodanine derivatives caused by free chloroacetic acid. This impurity can significantly lower the assay value. Strict pH monitoring during the dithiocarbamate conversion stage is essential to mitigate this risk. For detailed methodologies on avoiding these pitfalls, refer to our guide on P-Chlorophenyl Isothiocyanate Synthesis Route Industrial Purity.
Minimizing unreacted amine residues
Residual p-chloroaniline can interfere with downstream coupling reactions. Advanced purification steps, including multiple solvent washes and vacuum distillation, are employed to ensure the final product meets stringent specifications. Our technical team focuses on optimizing these separation processes to maximize yield without sacrificing quality.
Technical specifications and analytical methods
Quality verification relies on rigorous analytical testing. Below are the standard specifications for our high-assay grade 1-Chloro-4-Isothiocyanatobenzene. Each batch is tested using GC and HPLC methods to confirm identity and purity.
| Parameter | Specification |
|---|---|
| CAS Number | 2131-55-7 |
| Molecular Formula | C7H4ClNS |
| Molecular Weight | 169.63 g/mol |
| Purity (GC) | ≥ 98.5% |
| Appearance | White to Off-White Crystalline Powder |
| Melting Point | 44-46°C |
Strict Quality Assurance (QA) workflow and COA verification process
At NINGBO INNO PHARMCHEM CO.,LTD., every shipment is accompanied by a comprehensive Certificate of Analysis (COA). Our QA workflow includes raw material inspection, in-process control checks, and final product validation. We ensure that the COA provided matches the specific batch number received, guaranteeing traceability and compliance with international standards. This rigorous verification process protects our clients from variability and ensures consistent performance in their applications.
Reliable sourcing of high-quality intermediates is fundamental to successful chemical manufacturing. By prioritizing purity and documentation, we support seamless production scales from pilot plants to full commercial output.
To request a batch-specific COA, SDS, or secure a bulk pricing quote, please contact our technical sales team.