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Nitto RIKEN

Japanese chemical manufacturer based in Osaka, producing stabilized sodium hypochlorite and related hygiene products under the sterile brand.

Last updated September 27, 2026

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Overview

Nitto RIKEN (日東理化学株式会社) is a Japanese chemical company headquartered in Osaka. It is engaged in the development and supply of chemical products, with a stated commitment to safety, security, and environmentally conscious manufacturing. The company's public-facing activity centers on stabilized sodium hypochlorite, a chlorine-based disinfectant, which it markets in Japan and, since around 2020, in Taiwan through a partnership with the Taiwanese firm Toyo Autech (東洋歐帝克股份有限公司). Nitto RIKEN's best-known consumer-facing offering is the 'sterile' brand of stabilized sodium hypochlorite products. During the COVID-19 pandemic, demand for disinfectants rose sharply, and the company began limited-quantity sales of a 300 ml spray bottle format (packed 40 bottles per case) from June 20, 2020. The product is also distributed in Taiwan, where Toyo Autech handles sales. The company operates a Japanese-language website at nitto-rc.jp, which serves as its primary information channel. Its corporate message emphasizes originality over imitation, aiming to provide safe, reliable, and environmentally friendly products rather than merely low-cost or derivative goods. Nitto RIKEN positions itself as a company that pursues comfort and well-being for customers through chemistry. Beyond the sterile line, details of Nitto RIKEN's full product portfolio, ownership structure, founding date, and executive leadership are not publicly documented in the available sources. The company remains active as of the latest available information.

History

Nitto RIKEN (日東理化学株式会社) is a chemical company based in Osaka, Japan. Its precise founding date and early history are not documented in the available public sources. The company operates in the chemical products sector, with a focus on stabilized sodium hypochlorite, a disinfectant chemical. A significant development in the company's recent history was the launch of its 'sterile' brand of stabilized sodium hypochlorite products. In response to the COVID-19 pandemic, demand for disinfectants increased substantially. Nitto RIKEN announced that, due to this high demand, it would begin limited-quantity sales of sterile in a 300 ml spray bottle format (40 bottles per case) starting June 20, 2020. This product was made available through the dedicated website sterile.jp. Around the same period, Nitto RIKEN expanded its distribution to Taiwan. The Taiwanese company Toyo Autech Co., Ltd. (東洋歐帝克股份有限公司) began selling sterile stabilized sodium hypochlorite products, with purchases available through Toyo Autech's website. This marked a step in Nitto RIKEN's international market presence. The company also established a new corporate website at nitto-rc.jp, which serves as its primary online presence. In its corporate message, Nitto RIKEN states its commitment to manufacturing safe, secure, and environmentally friendly products through chemistry. It emphasizes originality, rejecting the idea of merely imitating successful products or competing on low prices, and expresses a desire to contribute to customers' comfortable futures. As of the latest available information, Nitto RIKEN remains an active company. Further details about its ownership, leadership, and full product range are not publicly available in the sources consulted.

  • Limited sale of sterile 300 ml spray bottles begins in Japan.

  • Sales of sterile stabilized sodium hypochlorite begin in Taiwan through Toyo Autech.

  • New corporate website nitto-rc.jp is established.

Products and positioning

Environmentally friendly, safe and secure chemical products with an emphasis on originality over imitation.

  • sterile stabilized sodium hypochlorite 300 ml spray bottle

    A stabilized sodium hypochlorite disinfectant in a 300 ml spray bottle, sold in cases of 40 bottles. Limited-quantity sales began June 20, 2020.

Sources2 sources

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