Registration Dossier
Registration Dossier
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EC number: 201-132-3 | CAS number: 78-67-1
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.15 mg/L
- Assessment factor:
- 10
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 0.15 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.015 mg/L
- Assessment factor:
- 100
- Extrapolation method:
- assessment factor
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:
- 0.912 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 0.091 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for air
Air
- Hazard assessment conclusion:
- no hazard identified
Hazard for terrestrial organisms
Soil
- Hazard assessment conclusion:
- PNEC soil
- PNEC value:
- 0.094 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
Adequate screening-level data are available to characterize the environmental hazard for the purposes of the REACH dossier. Information available for AZDN demonstrates that based on physico-chemical properties (low water solubility but also low Log P: 1.1), it is considered that the substance is mobile in soil and is not expected to adsorb to suspended solids, sediments and soils. Modeling data also indicate that the final destination compartment for AZDN when released in the environment is water and/or soil.
Based on the current information available AZDN is also categorized as non readily biodegradable.
The available aquatic toxicity information (algae, fish and Daphnia tests) on AZDN indicated that AZDN is neither toxic nor harmful for Daphnia and fish. On the other hand AZDN is toxic to algae. AZDN is not expected to bioaccumulate in aquatic/terrestrial species based on its determined Log Pow of 1.1.
AZDN being not bioaccumulative or toxic, it is not considered to be a candidate for PBT listing.
According to DSD/DPD criteria, AZDN is classified N-R51/53
According to CLP criteria, AZDN is not classified (all chronic data conclude to NOECs>> 1mg/L).
AZDN is already listed in Annex VI table 3.1 and 3.2 of UE 1272/2008. AZDN is classified: N-R52 -53 and Aquatic chronic 3.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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