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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. 524

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Food Contact Substance:  Tris (2,4-di-tert-butylphenyl) phosphite (CAS Reg. No. 31570-04-4).
Notifier:  Ciba Specialty Chemicals Corporation
Manufacturer:  BASF Corporation
Intended Use:  As an antioxidant/stabilizer in styrene block copolymers complying with 21 CFR 177.1810 Styrene block polymers
Effective Date:  09/30/2005
Limitations/Specifications:  May be used at levels not to exceed 0.4 percent by weight of the finished styrene block polymer, and in contact with all types of food, and under Conditions of Use A through H for which such styrene block polymers are permitted by 21 CFR 177.1810
Environmental Impact Decisions:  Environmental Decisions Site