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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

Reference
Name:
Methyl hydroquinone
Type of composition:
legal entity composition of the substance
State / form:
solid: particulate/powder
Reference substance:
Methyl hydroquinone
PBT status:
the substance is not PBT / vPvB
Justification:

2 -Methylhydroquinone is not readily biodegradable in the screening test. No valid predictions can be made with respect to the criteria given in Annex VIII.

Due to a low log Pow = 0.9 a remarkable bioaccumulation potential is not expected.

The substance It is acute toxic to aquatic environment: toxicity to fish is LC50 - 1,2 mg/l (No effects at 0.7 mg/l) and Daphnia EC50 - 0,35 mg/L, the EC50 algea - 2.3 mg/L, NOAEC for fish, daphnia and algea were not derived.