Registration Dossier
Registration Dossier
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EC number: 214-269-9 | CAS number: 1118-84-9
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Classification of allyl acetoacetate for effects in the environment
Several available data – estimation values (Klimisch 2) are available for allyl acetoacetate, which indicates that the chemical shall not exhibit aquatic toxicity to the various trophic levels organisms like fish, aquatic invertebrate like daphnia, algae and micro-organisms
In determining the classification appropriate to allyl acetoacetate, it is necessary to consider all available 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
Reliable studies are available to demonstrate that allyl acetoacetate is non persistent in nature and so is considered to have rapid biodegradation in the environment. In other words allyl acetoacetate degradation may therefore be expected to be fast. Thus it can be inferred that allyl acetoacetateis non persistent in character.
Allyl acetoacetateis non persistent and so do not satisfy the criteria for classification as persistent (P).
Potential to accumulate
Predicted and measured log Kow values for allyl acetoacetate is less than 4 (Log Kow = 0.1461). The potential for allyl acetoacetate to bioaccumulate in the tissues of organisms that inhabit aquatic or terrestrial matrices is negligible as the BCF factor for the substance is less than 1000.
The calculated BCF of allyl acetoacetate is 3.2 dimensionless and much below the threshold of 2000.
Thus, Allyl acetoacetate does not satisfy the criterion for classification as bioaccumulative (B).
The toxicity values of fish, invertebrates and algae are LC50 = 560.7053 mg/L, LC50 = 904.0236 mg/L and EC50 = 1217.818 mg/L, respectively. These values indicate that the chemical shall not exhibit aquatic toxicity to the three trophic level organisms mentioned above.
From the above, it is concluded that allyl acetoacetate does not satisfy the environmental effects criterion for classification as toxic (T).
Thus it can be inferred that allyl acetoacetate is not PBT
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