About Just Chemicals Inc.

For example, if you have any of the following requests, please don’t hesitate to contact us !

  • You want to know the price and delivery date of bulk compounds, and you want to get quotes and compare them.
  • You want to get the interesting compound used in the literature which you found out.
  • About the raw materials that you have used, are there suppliers of equal or better quality, less expensive, or in stable supply ?
  • You have found out an extract with the interesting bioactivity, and you want to identify the active ingredient.
  • You want to find promising compounds by virtual screening, and you want to search for contractors for it.
  • You want to prepare the designed compounds, screen actually them, and verify whether they are effective or not.

We will investigate internationally suppliers of organic compounds and contractors for assays using organic compounds.

About our business

  • Search for literatures, patents, drug discovery support tools, etc.
  • Procurement of compounds and matching with contract synthesis partners
  • Drug discovery research support
  • Development and marketing of supplements (in preparation)

We have signed an agency agreement in Japan (September 28, 2021) with vitasol science japan, a Japanese subsidiary of Avida Health, headquartered in Singapore.
The Avida Group has subsidiaries and sales teams in 12 countries around the world, and handles OEM planning and development of health foods and import / export of health food raw materials as an international trading company.

Corporate Philosophy

We aims to build a win-win relationship between our business partners and us ! By doing so, we aims to grow together.


I established Just Chemicals Inc. in July 2021 under the COVID-19 calamity for the purpose of drug discovery research support and development and sales of supplements, in order to utilize the experience and knowledge that I have cultivated so far.

The feature of our services is not only the procurement of compounds, but also the search for compound information and the matching between the companies outsourcing drug discovery research and contract research organizations (CROs).

By doing so, we would like to contribute to the further progress of drug discovery research and the health of everyone. We look forward to your continued patronage.

CEO Ph.D. Toyoharu Yamashita

Profile of CEO

1975.3Graduated from Fukuoka Prefectural Toyotsu High School
1980.3Graduated from the Department of Biological Chemistry, Faculty of Science, The University of Tokyo
1982.3Completed Master’s program, Graduate School of Pharmaceutical Sciences, The University of Tokyo
1982.4~2016.3Worked for Tanabe Seiyaku (now Mitsubishi Tanabe Pharma Corporation)
1994.6Obtained Ph.D.
2016.4~2020.6Worked at Institute of Rheological Functions of Food Co., Ltd.
2021.7Established Just Chemicals Inc.
Academic MembershipsPharmaceutical Society of Japan
Japan Bioindustry Association
Other MembershipsFukuoka BioValley Project

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