Annex of Approved Active Substances for Plant Protection Products

EU. Annex of Approved Active Substances, Regulation 540/2011/EU implementing Regulation 1107/2009/EC, last amended by Implementing Regulation (EU) 2023/2660, OJ L of 29 November 2023

This list contains the active substances approved under Regulation 1107/2009/EC, as listed in Regulation 540/2011/EU. The list is separated into five parts: Part A (deemed to have been approved under 1107/2009/EC); Part B (approved under 1107/2009/EC); Part C (basic substances); Part D (low-risk active substances); and Part E (candidates for substitution). Entries include common & IUPAC names, identifiers (e.g., CAS, CIPAC), purity information, and approval and approval expiration dates.


EC / List no: 608-567-1 CAS no: 3100-04-7
Ref No.
980 g/kg
Date of approval
1 August 2019
Expiration of approval
31 July 2034
B Active substances approved under Regulation (EC) No 1107/2009
Only uses as plant growth regulator for post-harvest storage in sealable warehouse may be authorised
1 Please refer to the original source document ( and subsequent amendments for applicable additional specific provisions.

189 The following impurities are of toxicological concern and must not exceed the following levels in the technical material (technical concentrate): 1-chloro-2-methylpropene: maximum of 0,2 g/kg, 3-chloro-2-methylpropene: maximum of 0,2 g/kg. For 1-methylcyclopropene generated in situ, Heptane and methylcyclohexane are toxicologically relevant impurities. These impurities should remain below 10 %.