The European Commission has proposed specific exemptions for using UV-328 under the Stockholm Convention on Persistent Organic Pollutants, effective from February 26, 2025. These exemptions include its use in land vehicles, blood collection tube separators, polarizer films, and photographic papers.
See the table below for more details.
Substance | CAS/ EU Num. | Specific exemption on intermediate use or other specification |
2-(2H-benzotriazol-2-yl)-4,6-ditertpentylphenol (UV-328) |
25973-55-1 247-384-8 |
1. For the purposes of this entry, Article 4(1), point (b), shall apply to concentrations of UV-328 equal to or below 1 mg/kg (0,0001 % by weight) where they are present in substances, mixtures or articles. 2. By way of derogation, the placing on the market of UV-328 present in articles and the use of such articles shall be allowed for the following purposes:
where UV -328 was initially used in their production, until the end of their service life or 2044, whichever comes earlier ; (f) spare parts for any of the following :
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Background on the Restrictions of UV-328
During the 11th Conference of the Parties to the Stockholm Convention, held in Geneva from May 1-12, 2023, methoxychlor, Dechlorane, and UV-328 were added to Annex A. Recognizing the lack of alternatives for UV-328 in the paints, coatings, and plastics industries, the conference provisionally allowed specific exemptions to support a smoother industry transition.