On July 30, 2021, the US Food and Drug Administration (FDA) added 13 entries to its Inventory of Effective Food Contact Substance Notifications (FCNs). Food contact substances within the inventory “have been demonstrated to be safe for their intended use” but are only effective for the “manufacturer or supplier identified in the notification.”
The new substances are included with the following FCN numbers:
• 2148: Magnesium sodium fluoride silicate (CAS 56450-90-9)
• 2142: Copolymer of styrene (CAS 100-42-5), methyl methacrylate (CAS 80-62-6), and glycidyl methacrylate (CAS 106-91-2). Replaces FCNs 853 AND 1109
• 2139: Zinc pyrithione (CAS 13463-41-7) Replaces FCN 2031
• 2138: Polyethylene terephthalate copolyesters (diethylene glycol-isophthalate modified) prepared by the condensation of dimethyl terephthalate or terephthalic acid and ethylene glycol with one or more of the following: dimethyl isophthalate, isophthalic acid, and diethylene glycol
• 2120: Paraffin waxes and hydrocarbon waxes, oxidized (CAS 68153-22-0)
• 2137: Chromium nitride
• 2136: Polyethylene terephthalate-azelate copolyester resin (CAS 25609-72-7)
• 2133: Hypochlorous acid (CAS 7790‐92‐3)
• 2121: Octyltriethoxysilane-modified titanium dioxide
• 2130: Acetic acid ethenyl ester, polymer with N-ethenylformamide, hydrolyzed, amine-containing (CAS 163879-68-3)
• 2127: Poly(tetramethylene terephthalate)(CAS 24968-12-5 and 26062-94-2) as manufactured from terephthalic acid and 1,4-butanediol
• 2125: 1,6-Hexanediol (CAS 629-11-8)
• 2122: Styrene-maleic anhydride copolymer (CAS 9011-13-6)
