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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Environmental fate & pathways

Phototransformation in air

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Administrative data

Link to relevant study record(s)

Description of key information

After evaporation or exposure to the air, the product will be rapidly degraded by photochemical processes.

Key value for chemical safety assessment

Additional information

There are no experimental data on photodegradation of cyclohexyl-methacrylate. According to Q(SAR) data using SRC AOP v1.92, cyclohexyl-methacrylate will be rapidly degraded by photochemical processes after exposure to the air reacting with the photochemically produced hydroxyl radicals (calculated half-life for a 24-hour day and 0.5E06 OH/cm³: 12.9 hours) (BASF SE, 2010).

QSAR-disclaimer

 

In Article 13 of Regulation (EC) No 1907/2006, it is laid down that information on intrinsic properties of substances may be generated by means other than tests, provided that the conditions set out in Annex XI (of the same Regulation) are met. Furthermore according to Article 25 of the same Regulation testing on vertebrate animals shall be undertaken only as a last resort.

 

According to Annex XI of Regulation (EC) No 1907/2006 (Q)SAR results can be used if

(1) the scientific validity of the (Q)SAR model has been established,

(2) the substance falls within the applicability domain of the (Q)SAR model,

(3) the results are adequate for the purpose of classification and labeling and/or risk assessment and

(4) adequate and reliable documentation of the applied method is provided.

 

For the assessment of cyclohexyl methacrylate (Q)SAR results were used for aerobic biodegradability in water.The criteria listed in Annex XI of Regulation (EC) No 1907/2006 are considered to be adequately fulfilled and therefore the endpoint(s) sufficiently covered and suitable for risk assessment.

 

Therefore, further experimental studies on aerobic biodegradability in water are not provided.