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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. 999

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Food Contact Substance:  Mixture of 5-chloro-2-methyl-4-isothiazolin-3-one (CIT; CAS Reg. No. 26172-55-4) and 2-methyl-4-isothiazolin-3-one (MIT; CAS Reg. No. 2682-20-4) at a ratio of 9 parts to 1 by weight.
Notifier:  Thor Specialties Inc.
Manufacturer:  Thor GmbH
Intended Use:  For use as an antimicrobial agent for finished coating formulations and for additives used in the manufacture of paper and paperboard including fillers, binders, pigment slurries, and sizing solutions.
Effective Date:  11/18/2010
Limitations/Specifications:  The FCS will not be used in excess of 21 parts per million CIT/MIT (9:1) in the coating formulations and additives.
Environmental Impact Decisions:  Environmental Decisions Site