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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Freshwater

Hazard assessment conclusion:
no hazard identified

Marine water

Hazard assessment conclusion:
no hazard identified

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
100 mg/L
Assessment factor:
10
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.37 ng/kg sediment dw
Assessment factor:
100
Extrapolation method:
assessment factor

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.037 mg/kg sediment dw
Assessment factor:
1 000
Extrapolation method:
assessment factor

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.632 mg/kg soil dw
Assessment factor:
50
Extrapolation method:
assessment factor

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential to cause toxic effects if accumulated (in higher organisms) via the food chain

Additional information

Assessment of the parent substance (source and target):

No toxic effects of the test item were observed in the range of solubility. The inhibition of the degradation activity of activated sludge is not anticipated when introduced in appropriate low concentrations. The substance is with high probability acutely and chronically not harmful to aquatic organisms.

For the terrestrial compartment no toxicity no acute toxicity was observed in tests with earthworms and no toxicity to plants. In tests with soil microorganisms carbon transformation was affected but not nitrogen transformation. Chronic toxicity in earthworms and sediment dwelling organisms was observed.

Classification according to CLP (self classification): no classification

Reasons for classification see below 'Conclusion on classification'.

Supporting assessment of major degradation product Metilox acid (CAS 20170-32-5)

Acute toxicity test results are available for fish, Daphnia and algae. In an activated sludge respiration inhibition test, no adverse effects were observed. Slight toxic effects were observed in tests with fish and algae. However, these effects were caused by very high concentrations and are above the criteria for classification according to CLP.

No data on soil and sediment toxicity are available.

Classification according to CLP: Aquatic Chronic 4

Conclusion on classification

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008
The available experimental test data of a structural analogue substance are reliable and suitable for classification purposes under Regulation (EC) No 1272/2008. Acute and chronic data the read-across substance on aquatic toxicity are available for all trophic levels. No toxicity occurred in the range of solubility. Furthermore, the read-across substance is not readily biodegradable and the bioconcentration factor is < 500. As a result the substance is not considered to be classified for environmental fate and aquatic toxicity under Regulation (EC) No 1272/2008.