www.feizichem.com   Shijiazhuang FeiZi Chemical Technology Co., Ltd. 

Its Flagship Product 1,3-Dimethyl-5-pyrazolone Achieves Large‑scale and Stable Supply

Recently, Shijiazhuang Feizi Chemical Technology Co., Ltd. announced that its core product 1,3-Dimethyl-5-pyrazolone (CAS: 2749‑59‑9) has achieved large‑scale and stable supply. Supported by consistent production capacity and reliable product quality, the company keeps delivering high‑quality intermediates for customers in the domestic and overseas pharmaceutical, pesticide and dye industries, further consolidating its market position in the segmented field of nitrogen‑containing heterocyclic fine chemicals.

Product Positioning: A Critical Bottleneck‑breaking Intermediate for Antipyretic‑analgesic Drugs and Pesticides

1,3‑Dimethyl‑5‑pyrazolone, with molecular formula C₅H₈N₂O and molecular weight of 112.13, is a typical pyrazolone heterocyclic compound. It also serves as a hub‑type intermediate linking basic chemicals and high‑end preparations. It boasts a wide range of downstream applications:

• Pharmaceutical sector: As a key intermediate for synthesizing classic antipyretic‑analgesic drugs such as metamizole sodium and aminopyrine, it is widely used in clinical scenarios for fever and pain relief, and constitutes an indispensable link in the synthesis chain of multiple non‑steroidal anti‑inflammatory active pharmaceutical ingredients (APIs).
• Pesticide sector: It can be applied to produce the novel acaricide fenpyroximate and herbicide pyrazolate. Driven by rising demands for green plant protection, market demand for this application keeps growing.
• Dye sector: It acts as an important intermediate for azo dyes, and is used to prepare textile and printing dyes of various color systems.

Thanks to its versatile properties across three major industries, this product maintains steady market demand and shows strong competitiveness especially in the export market of pharmaceutical intermediates.

Full‑chain Quality Control to Guarantee Large‑scale and Stable Supply

Founded in 2022, Feizi Chemical specializes in the R&D, production and sales of pharmaceutical intermediates and fine chemical products. Its production plant is located in Shijiazhuang Circular Chemical Park, covering an area of about 50 mu with over 60 employees. Its R&D center is situated in Zhitong Pharma Valley, Shijiazhuang High‑tech Development Zone, undertaking technical research and process optimization for new products.

For 1,3‑Dimethyl‑5‑pyrazolone, the company has built a full‑chain quality control system covering raw material procurement, synthesis processes and finished‑product testing. Products are classified, labeled and managed in strict compliance with GHS requirements to guarantee consistent quality among different batches. Currently, the product is exported to many countries and regions including Europe, America, Japan, Southeast Asia and South America. Upholding the business philosophy of "Quality‑oriented, Professional, Innovative and Integrity‑driven", Feizi Chemical continues to deliver cost‑effective supply solutions for global customers.

Steady Capacity Expansion toward In‑depth Development of High‑end Fine Chemicals

Building on the large‑scale supply capacity of pyrazolone‑based intermediates, Feizi Chemical is leveraging its existing R&D and production strengths to develop more high‑value‑added nitrogen‑containing heterocyclic derivatives. According to the company, it will keep increasing R&D investment and optimizing production processes, attach equal importance to quality and safety, and provide domestic and overseas customers with more stable, professional and traceable products and services, contributing to the high‑end transformation of China’s fine‑chemical industrial chain.