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U.S. Department of Health and Human Services

Inventory of Effective Food Contact Substance (FCS) Notifications
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FCN No. 2423

Sumitomo Chemical Co., Ltd.

According to Section 409(h)(1)(C) of the Federal Food, Drug, and Cosmetic Act, food contact substance notifications (FCNs) are effective only for the listed manufacturer and its customers. Other manufacturers must submit their own FCN for the same food contact substance and intended use.
Food Contact Substance: Poly(oxy(1,1'-biphenyl)-4,4'-diyloxy-1,4-phenylenesulfonyl-1,4-phenylene) (CAS Reg. No. 25839-81-0 and 25608-64-4).
Notifier: Sumitomo Chemical Co., Ltd.
Manufacturer/Supplier: Sumitomo Chemical Co., Ltd.
Intended Use: As a component used in the manufacture of repeat-use food-contact articles, except for use in contact with infant formula and human milk. (see Limitations/Specifications).
Limitations/Specifications: The FCS is intended to be used in repeat-use articles used in contact with all food types. The FCS is not for use in contact with infant formula or human milk. Such uses were not included as part of the intended use of the substance in the FCN.
Effective Date: Apr 8, 2025
National Environmental Policy Act (NEPA)** Submission: Categorical Exclusion 25.32(j)
FDA Decision: Categorical Exclusion Memo

*See Food Types and Conditions of Use for Food Contact Substances (Tables 1 and 2).

**More about Environmental Decisions and Definitions of Environmental Terms.
See also Inventory of Environmental Impact Decisions for Food Contact Substance Notifications.
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