Registration Dossier

Physical & Chemical properties

Flammability

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Description of key information

Androst-4-ene-3,17-dione can be considered as not highly flammable, not pyrophoric and not reactive in contact with water.

Key value for chemical safety assessment

Flammability:
non flammable

Additional information

No ignition was observed in the preliminary screening test according to EU method A.10. Therefore, the substance is not to be considered as highly flammable. No further testing is required.

Justification for classification or non-classification

Pyrophoric properties are determined following the methods N.3 (UN-Manual of testing) or A.13 (EU-method). However, in accordance with section 1 of REACH Annex XI, a study does not need to be conducted as it is scientifically unjustified. Based on experience during handling and use, no pyrophoric properties were observed and the structure does not give a reference to pyrophoric properties. The flammability of a substance on contact with water is determined following the methods N.5 (UN-Manual of testing) or A.12 (EU-method). However, in accordance with section 1 of REACH Annex XI, a study does not need to be conducted as it is scientifically unjustified. Based on experience during handling and use, the substance does not liberate highly flammable gases on contact with water or humid air.