Our excellent products, ranging from active pharmaceutical ingredients (APIs) to functional cosmetic materials, support a wide range of industries and people's daily lives.

Sogo Pharmaceuticals was founded in 1955 as an API manufacturer specialized in taurine and synthetic antibacterial agents, and has established itself as a manufacturer of APIs and intermediates by focusing on the synthesis of pharmaceutical intermediates.

We also develop and manufacture functional cosmetic raw materials, recording materials and electronic materials, etc. by utilizing the synthesis technology we have obtained through the production of APIs.

We are also engaged in contract manufacturing to meet the needs of our customers, and we can develop processes based on our customers' technologies as well as conduct scale-up studies of the recipes provided by our customers.

Active Pharmaceutical Ingredients and Pharmaceutical Intermediates

We can handle both existing APIs and investigational drugs. We are one of the few companies in Japan that have facilities to manufacture steroidal APIs. Although it often takes several phases to study the feasibility of launching a new drug, we have received high praise for our meticulous attitude to work with our customers.

Fine Chemicals

In the field that requires a quick response to the market, we can supply products in a timely manner to meet your needs by streamlining lab studies and shortening the time between lab testing and manufacturing using actual equipment.

Cosmetics

We manufacture and sell our original functional cosmetic ingredients. We can offer recommendation regarding synthesis of existing raw materials and provide process study as well as mass production plan of new raw materials based on the technology we have cultivated in the field of medicine and fine chemicals.

Based on the trust that we have built up over the few decades, we are actively developing contract manufacturing services for pharmaceutical and chemical companies.

[ Pharmaceuticals ]
In addition to API manufacturing ("APIs and steroidal drug substances"), we can also manufacture "Pharmaceutical Intermediates" and "Investigational APIs". We have been inspected by the FDA as well as the domestic authorities for APIs.

[ Fine Chemicals ]
We manufacture and sell a wide range of "Industrial organic chemicals" ranging from resin additives to animal repellents, and "Recording and electronic materials" for which higher purity is increasingly required. We also deal in "Special chemicals" with aziridine rings.

[ Cosmetics ]
We welcome your inquiry regarding the purchase of our original raw materials ("Whitening agents and antioxidants") and contract manufacturing using the active ingredients.

• In addition to the manufacturing according to the flow provided by the customer, we can study the process as well.

• Future production using actual equipment in mind, we will start with a laboratory study of the manufacturing flow to match our manufacturing facilities.

• In case of scale-up study, we can support each theme flexibly.

• We value the trusting relationship between our technical staff and our clients, and we are committed to achieving a scale-up schedule that meets your needs.

• Development of ketene/diketene by Flow Reactor

• Boronic Acid Synthesis by Flow Reaction

• Application research of bimolecular membrane technology to DDS and nucleic acid medicine.

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• Fukuoka Factory
  (Nakama-City , Fukuoka pref.)

• Iwaki Factory
  (Iwaki-City , Fukushima pref.)