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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. 104

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Food Contact Substance:  Hydroxymethyl-5,5-dimethylhydantoin (DMDMH) (CAS Reg. No. 27636-82-4), mixture with 1,3-bis(hydroxymethyl)-5,5-dimethylhydantoin (MMDMH) (CAS Reg. No. 6440-58-0).
Notifier:  Lonza, Inc.
Manufacturer:  Lonza, Inc.
Intended Use:  As preservatives for mineral (pigment) slurries (clay, kaolin clay, calcium carbonate or titanium dioxide) that are used as components of paper coatings used in the manufacture of food-contact paper and paperboard and as preservatives in mineral slurries of calcium carbonate or titanium dioxide that are used as fillers in the manufacture of food-contact paper and paperboard.
Effective Date:  02/27/2001
Limitations/Specifications:  1. The subject methylhydantoins may be used as intended, at a combined level not to exceed 1200 parts per million (ppm) in the slurry. 2. Paper and paperboard manufactured with DMDMH and MMDMH can be used under Conditions of Use D through H as described in Table 2.
Environmental Impact Decisions:  Environmental Decisions Site