Cetirizine CAS NO.83881-51-0

Hangzhou Huarong Pharm Co., Ltd.established since 2009 , has been actively developing specialty products for Finished Dosages, APIs, Intermediates, and Fine chemicals markets in North America, Europe, Korea, Japan, Mid-East and all over the World.



Huarong Pharm has a team of more than 15 professionals working with diligence and tenacity at all hours trying to make a breakthrough and leap to the industry and yours. In addition to the distribution, Huarong people have invested in Lab and cGMP plants to allows us to offer service like: develop non-infringing synthesis process(include impurity study, stability study novel polymorph forms,ect) ,technology transfer, with a view to the long-term supply to support FTF In US, EU, China and other markets.


Huarong people has built our success through the success of our clients by providing complete solutions. As our belief to be your “China Business Partner & Solution", we are looking forward to establishing a long term cooperation with our partners and clients all over the world.

1. Customized Synthesis

Huarong Pharm possesses a high-level R&D team with more than ten years of rich experience. They can quickly design and optimize synthetic routes, and provide customized R&D services for products with the size ranging from milligram to kilogram. We provide a technology platform and advanced technical reserves in the field of customized synthesis, and professional support from quality control and customer service teams. We are widely recognized by customers ranging from pharmaceutical companies, research institutes and universities, etc. Seamless customer interface, efficient communication and fulfilling mission are our consistent goals.

Customized synthesis of building blocks

Customized synthesis of reference compounds and compound libraries

Customized synthesis of APIs and intermediates

Customized synthesis of impurity controls

Customized synthesis of specialty chemicals

2.Process R&D

Huarong Pharm has excellent technical research and development strength and has been committed to the process of innovation, research and development for many years. With profound professional accumulation in the pharmaceutical industry, as well as advanced technology research and development systems and standardized service management systems, we can provide customers with one-stop service from pre-clinical to commercial. Thanks to the support from our professional synthesis, QC, QA and registration teams, we can make an immediate response and provide efficient service to meet our customers' different demands on process research and development.

3. APIs and intermediates Production

Our R&D team follows the concept of QbD , We plan from a design perspective and use our own or outsourced production resources for various specifications and systems to provide customized and commissioned production of APIs or intermediates. Especially in the field of high-potency API research, the company is equipped with a series of advanced devices and instruments. Currently, we have completed the development of several series of highly active API or intermediate products. Our R&D team has rich experience. Moreover, both the GMP-like laboratory in Hangzhou R&D Center and the GMP laboratory in Yongan R&D Center can effectively support the development, production and registration of high-potency drug intermediates and API products to meet R&D and production needs of different partners.

Commissioned production of marketed APIs or intermediates

Commissioned development and production of innovative APIs or intermediates

Commissioned development and production of high-potency APIs or intermediates

4. Quality Research & Registration Application

The company has a professional analysis and quality research team and an experienced registration application service team, which provides comprehensive services ranging from pre-clinical to commercialization, from new drugs to generic drugs. Our teams use a standardized management system to ensure the authenticity and professionalism of the dossiers and assist the drug regulatory authorities in the inspection. We are highly efficient in providing drug registration application services to meet regulatory requirements for domestic and foreign customers. Currently, the company has completed many successful cases in the field of registration application services.