Substance Information

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REACH Registration data can be found in the new ECHA CHEM database. The old ‘Registered substance factsheets’ will be available on this web site during the transition period but have not been updated since 19 May 2023. More

 

Substance Infocard

IC

2-pentylidenecyclohexan-1-one

EC / List no.: 247-178-8

CAS no.: 25677-40-1

Mol. Formula: C11H18O

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Key datasets

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Regulatory context

Here you can find all of the regulations and regulatory lists in which this substance appears, according to the data available to ECHA. This substance has been found in the following regulatory activities (directly, or inheriting the regulatory context of a parent substance):

REACH - Registration, Evaluation, Authorisation and Restriction of Chemicals Regulation
  • Substances predicted as likely to meet criteria for category 1A or 1B carcinogenicity, mutagenicity, or reproductive toxicity, or with dispersive or diffuse use(s) where predicted likely to meet any classification criterion for health or environmental hazards, or where there is a nanoform soluble in biological and environmental media.
  • Substances indicated, in 2009, as being intended to be registered by at least one company in the EEA.
Previous Legislations
  • Substances listed in the EINECS, ELINCS, or NLP inventories.
Cosmetic Products Regulation
  • Cosmetic Products Regulation, Annex II - Prohibited Substances
    EU. Prohibited Substances: Annex II, Regulation 1223/2009/EC on Cosmetic Products, as amended by Regulation (EU) 2023/1490, OJ L 183, 20 July 2023

    This list contains substances which are banned from use in any cosmetic products marketed for sale or use in the European Union.

Toy Safety Directive
  • Annex II, Sec III - Allergenic Fragrances Banned/Restricted in Toys
    EU. Allergenic Fragrances Banned or Restricted in Toys, Directive 2009/48/EC, OJ L 170/1, 30 June 2009, last amended by Directive (EU) 2020/2089, OL L 423, 15 December 2020

    This list contains allergenic fragrances whose use in toys is banned or restricted in the European Union in accordance with point 11, Part III of Annex II (Particular Safety Requirements) to Directive 2009/48/EC on toy safety. For each entry in the list, the substance name, CAS number and, where applicable, notes on restrictions are provided.

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Substance names and other identifiers

Regulatory process names
2-Pentylidene-cyclohexanone
Annex II, Sec III - Allergenic Fragrances Banned/Restricted in Toys
2-pentylidenecyclohexan-1-one
EC Inventory
2-Pentylidenecyclohexan-1-one
Other
2-pentylidenecyclohexan-1-one
Pre-Registration process
2-Pentylidenecyclohexanone
Cosmetic Products Regulation, Annex II - Prohibited Substances, Other
Cyclohexanone, 2-pentylidene-
Other
IUPAC names
(2E)-2-pentylidenecyclohexan-1-one
Other
Other identifiers
25677-40-1
EC Inventory, Pre-Registration process, Cosmetic Products Regulation, Annex II - Prohibited Substances, Annex II, Sec III - Allergenic Fragrances Banned/Restricted in Toys, Other
CAS number