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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Hazard for aquatic organisms

Hazard for air

Hazard for terrestrial organisms

Hazard for predators

Additional information

Conclusion on classification

Classification relevant information

Biodegradation:

·        Not readily biodegradable (0%, based on O2 consumption) within 28 d (OECD 301 F)

Bioaccumulation:

·        log Kow: 3.16 (OECD 117, HPLC method)

Acute toxicity:

·        to fish: no data available

·        to aquatic invertebrates: EC50 (48 h) = 20.3 mg/L (geom. mean measured, Daphnia magna, OECD 202)

·        to algae: EC50 (72 h) > 25.4 mg/L (geom. mean measured, growth rate of Pseudokirchneriella subcapitata, OECD 201)

Chronic toxicity:

·        to fish: no available data

·        to aquatic invertebrates: no available data

·        to algae: EC10 (72 h) = 4.81 mg/L (geom. mean measured, growth rate of Pseudokirchneriella subcapitata, OECD 201)

 

Classification justification according to CLP

Based on the data above the substance 2,6-Di-tert-butyl-4-(hydroxymethyl)phenol (CAS 88-26-6) is not rapidly biodegradable. Acute aquatic toxicity data are available for two trophic levels. The lowest acute effect value was determined for aquatic invertebrates and amounts 20.3 mg/L (EC50, 48 h). Chronic toxicity data are available only for algae with an EC10 (72 h) of 4.81 mg/L. Therefore, the substance needs to be classified and labelled as hazardous to the environment Chronic 3 H412 according to the consolidated version of Regulation (EC) No 1272/2008 (dated: 01.01.2017) and further amendments (ATPs).