Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Conclusion on classification

Short-term aquatic toxicity data is available for 2 trophic levels (daphnia and algae). The daphnia EC50 (48 hrs) was 0.24 mg/L (based on mean measured concentration). The ErC50 was not attained since, only 40.8% inhibition of Growth Rate was observed at the highest test concentration, which equates to the saturation concentration (0.90 mg/L (nominal), 0.68 mg/L (measured TWA)) after 72 hours. Hence the ErC50 for algae was determined to be above 0.68 mg/L (saturation, based on mean measured concentrations).

Given that the EC50 value (daphnia) is between 0.1 and 1.0 mg/L, the substance is classified as Acute 1 with M factor of 1.


Chronic aquatic toxicity data is only available for one trophic level (algae). Therefore, the long-term hazard has been assessed based on both:

a) The chronic aquatic toxicity data for algae (ErC10 =  0.020 mg/L and NOEC = 0.015 mg/L) and ready biodegradability of the substance, which results in a Category Chronic 2 classification, and

b) The acute aquatic toxicity data for daphnia (EC50 = 0.24 mg/L) and environmental fate data (readily biodegradable and log Kow of >4), which results in a Category Chronic 1 classification

and classifying according to the most stringent outcome.


Thus based on the most stringent outcome, it is concluded that the substance is classified Aquatic Acute 1 (H400, M factor of 1) and Aquatic Chronic 1 (H410, M factor of 1) according to the CLP Regulation 1272/2008/EC & adaptation 286/2011/EC.


According to the old DSD regulation, Directive 67/548/EEC, the substance would be classified as R50/53 based on the EC50 values < 1 mg/L and log Kow of > 3.