Registration Dossier
Registration Dossier
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EC number: 219-091-5 | CAS number: 2353-45-9
Ecotoxicological Summary
Administrative data
Hazard for aquatic organisms
Freshwater
- Hazard assessment conclusion:
- PNEC aqua (freshwater)
- PNEC value:
- 0.104 mg/L
- Assessment factor:
- 1 000
- Extrapolation method:
- assessment factor
- PNEC freshwater (intermittent releases):
- 1.04 mg/L
Marine water
- Hazard assessment conclusion:
- PNEC aqua (marine water)
- PNEC value:
- 0.01 mg/L
- Assessment factor:
- 10 000
- 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:
- 22 578 416.08 mg/kg sediment dw
- Extrapolation method:
- equilibrium partitioning method
Sediment (marine water)
- Hazard assessment conclusion:
- PNEC sediment (marine water)
- PNEC value:
- 2 257 841.608 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:
- 10 820 992.02 mg/kg soil dw
- Extrapolation method:
- equilibrium partitioning method
Hazard for predators
Secondary poisoning
- Hazard assessment conclusion:
- no potential for bioaccumulation
Additional information
Classification of dihydrogen(ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)amino] (4-hydroxy-2-sulphonatobenzhydrylidene] cyclohexa-2,5-dien-1-ylidene] (3-sulphonatobenzyl)ammonium,disodium salt for effects in the environment
In determining the classification appropriate to dihydrogen(ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)amino] (4-hydroxy-2-sulphonatobenzhydrylidene] cyclohexa-2,5-dien-1-ylidene](3-sulphonatobenzyl)ammonium,disodium salt,
it is necessary to consider all evidence concerning its persistence, potential to accumulate and predicted or observed environmental fate and behaviour that may present a long-term and/or delayed danger to the structure and/or functioning of aquatic ecosystems. These points are considered below.
Persistence
Half life period of dihydrogen(ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)amino] (4-hydroxy-2-sulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene] (3-sulphonatobenzyl)ammonium,disodium salt in water is observed to be 180 days (4.32e+003 hrs.) while in sediment it is 1620.8333 days (3.89e+004 hrs). Based on these half life values, it is concluded that the chemical is very persistent in water and sediment. Basd upon the half life in soil, the chemical is estimated to be not persistent in the soil environment.
Thus the chemical dihydrogen(ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)amino] (4-hydroxy-2-sulphonatobenzhydrylidene] cyclohexa-2,5-dien-1-ylidene] (3-sulphonatobenzyl)ammonium,disodium salt is classified as being persistent in water and sediment.
Potential to accumulate
The estimated bioconcentration factor (BCF) for dihydrogen(ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)amino] (4-hydroxy-2-sulphonatobenzhydrylidene] cyclohexa-2,5-dien-1-ylidene] (3-sulphonatobenzyl)ammonium,disodium salt
,is 3.162 L/kg, that does not exceed the bioconcentration threshold of 2000. Thus it is concluded that the chemical is not expected to bioaccumulate in the food chain because the BCF criteria is not exceeded.Thus, the chemical does not satisfy the criterion for classification as bio-accumulative (B).
Toxicity
As per the criteria of Annex XIII of the REACH regulation, the chemical is not expected to qualify the criteria as Toxic. Thus,
dihydrogen(ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)amino] (4-hydroxy-2-sulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene] (3-sulphonatobenzyl)ammonium,disodium salt is not a toxic chemical.
Thus, the chemical does not satisfy the criterion for classification as toxic (T).
In conclusion, it can be concluded that the chemical dihydrogen(ethyl)[4-[4-[ethyl(3-sulphonatobenzyl)amino] (4-hydroxy-2-sulphonatobenzhydrylidene]cyclohexa-2,5-dien-1-ylidene] (3-sulphonatobenzyl) ammonium,disodium salt is not a PBT chemical.
Conclusion on classification
Aquatic Classification is not triggered based on available data, according to REGULATION (EC) No 1272/2008 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006.
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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