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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties


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Administrative data

Link to relevant study record(s)

Description of key information

1) The flammability of a substance is determined following the methods N.1 (UN-manual of testing) or A.10 (EU-method). 
However, in accordance with section 2 of REACH Annex XI, a study is technically not feasible as Mecoprop-P n-octyl ester is a liquid. The flammability of a liquid is described by the flash point.
2) 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 of Mecoprop-P n-octyl ester, no pyrophoric properties were observed and the structure does not give a reference to pyrophoric properties.
3) In accordance with section 1 of REACH Annex XI, the study on flammability in contact with water does not need to be conducted as Mecoprop-P n-octyl ester contains no metals or metalloids and therefore will not release flammable gases in contact with water.

Key value for chemical safety assessment

Additional information

Justification for classification or non-classification

Mecoprop-P n-octyl ester is not flammable, it has no pyrophoric properties, and no flammability in contact with water; and hence no classification according to both Directive 67/548/EEC and GHS (Regulation EC 1272/2008).