Registration Dossier

Administrative data

Hazard for aquatic organisms

Freshwater

Hazard assessment conclusion:
PNEC aqua (freshwater)
PNEC value:
0.062 mg/L
Assessment factor:
50
Extrapolation method:
assessment factor
PNEC freshwater (intermittent releases):
0.088 mg/L

Marine water

Hazard assessment conclusion:
PNEC aqua (marine water)
PNEC value:
0.006 mg/L
Assessment factor:
500
Extrapolation method:
assessment factor

STP

Hazard assessment conclusion:
PNEC STP
PNEC value:
25 mg/L
Assessment factor:
1
Extrapolation method:
assessment factor

Sediment (freshwater)

Hazard assessment conclusion:
PNEC sediment (freshwater)
PNEC value:
0.23 mg/kg sediment dw
Extrapolation method:
equilibrium partitioning method

Sediment (marine water)

Hazard assessment conclusion:
PNEC sediment (marine water)
PNEC value:
0.023 mg/kg sediment dw

Hazard for air

Air

Hazard assessment conclusion:
no hazard identified

Hazard for terrestrial organisms

Soil

Hazard assessment conclusion:
PNEC soil
PNEC value:
0.01 mg/kg soil dw
Extrapolation method:
equilibrium partitioning method

Hazard for predators

Secondary poisoning

Hazard assessment conclusion:
no potential for bioaccumulation

Additional information

Conclusion on classification

Classification relevant information

Degradation:

-         Abiotic: t1/2: 15 min at pH 7 (RA from CAS 3069-29-2)

-         Biotic: Not readily biodegradable (RA from CAS 3069-33-8)

 

Acute Toxicity:

Fish: LC50 (96 h) = LC50 (96 h) = 200 mg/L (RA from CAS 1760-24-3)

Aq. Invertebrates: EC50 (48 h) = 81 mg/L (RA from CAS 1760-24-3)

Algae: EC50 (72 h) = 8.8 mg/L (RA from CAS 1760-24-3)

 

Chronic Toxicity:

Aq. Invertebrates: NOEC (21 d) ≥1 mg/L (RA from CAS 1760-24-3)

Algae: NOEC (72 h) = 3.1 mg/L (RA from CAS 1760-24-3)

 

Conclusion on classification

N-[3-(dimethoxymethylsilyl)-2-ethylpropyl]ethylenediamine (CAS 23410-40-4) is not considered readily biodegradable. Short-term toxicity data are available for an appropriate read across substance for all trophic levels. The most sensitive trophic level was algae with an EC50 (48 h) of 8.8 mg/L. Adequate long term toxicity data are available for aquatic invertebrates and the most sensitive trophic level algae (NOEC > 1 mg/L). Based on these data, the substance is not classified or labeled, according to the consolidated version of Regulation (EC) No 1272/2008 or further amendments (ATPs).