Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Description of key information

Increased incidences of tumours have been observed in inhalation studies on rats and hamsters exposed to acetaldehyde. In rats, there were dose-related increases in nasal adenocarcinomas and squamous cell carcinomas (significant at all doses). However, in hamsters, increases in nasal and laryngeal carcinomas were non-significant. All concentrations of acetaldehyde administered in the studies induced chronic tissue damage in the respiratory tract.

Key value for chemical safety assessment

Justification for classification or non-classification

Based on the data available, acetaldehyde is classified as carcinogenic Category 2, H351: Suspected of causing cancer according to 1272/2008/EEC (CLP) and R40: Limited evidence of a carcinogenic effect according to 67/548/EEC (DSD).

Additional information

These data and information are based on the sources of the IUCLID Dataset from 19 February 2000 published by the European Commission and the International Programme on Chemical Safety (IPCS) published under the joint sponsorship of the United Nations Environment Programme, the International Labour Organisation, and the World Health Organization (Environmental Health Criteria 167).