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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. 1119

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Food Contact Substance:  Butanoic acid, 3-hydroxy-, (3R)-, polymer with 4-hydroxybutanoic acid (CAS Reg. No. 125495-90-1) and butanoic acid, 3-hydroxy-, (3R)-, homopolymer (CAS Reg. No. 29435-48-1).
Notifier:  Metabolix, Inc.
Manufacturer:  Metabolix, Inc.
Intended Use:  As components of polymers used in articles that may contact food.
Effective Date:  01/21/2012
Limitations/Specifications:  The FCS may contain up to 16 weight percent units derived from 4-hydroxybutanoic acid. The FCS will be used as a single-use polymer that may contact all food except alcoholic food under Conditions of Use B through H, as identified in the Table 2.
Environmental Impact Decisions:  Environmental Decisions Site