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EC number: 214-269-9 | CAS number: 1118-84-9
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
Based on the weight of evidence appraoch, the no observed effect concentration (NOEC) value of allyl acetoacetate in algae Pseudokirchneriella subcapitata in a 72 hr studybased upon effect on growthwas estimated to be 166.1863 mg/L. In addition, the effective concentration (EC50) value of allyl acetoacetate in green algae Chlorococcales in a 24 hr study based upon effect on physiology was estimated to be 1217.818 mg/L. The other studies also indicate that the chemical shall not exhibit aquatic toxicity to aquatic algae.
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 1 217.818 mg/L
- EC10 or NOEC for freshwater algae:
- 166.186 mg/L
Additional information
The no observed effect concentration (NOEC) value of allyl acetoacetate in algae Pseudokirchneriella subcapitata in a 72 hr studybased upon effect on growthwas estimated to be 166.1863 mg/L. Thus, considering the CLP Criteria for aquatic classification of the substance , it is concluded that allyl acetoacetateshall not exhibit short term toxicity to Pseudokirchneriella subcapitata.
The various weight of evidencestudies can be summarised as follows :
Sr. No |
End point name |
Value |
Unit |
Species |
Basis for effect |
1 |
NOEC |
166.1863 |
mg/l |
Pseudokirchnerella subcapitata |
Growth |
2 |
EC50 |
166.8663 |
mg/l |
Pseudokirchnerella subcapitata |
Growth |
3 |
EC50 |
1217.818
|
mg/l |
Chlorococcales |
Physiology |
4 |
EC50 |
298.786 |
mg/l |
Green algae |
No data |
5 |
EC50 |
403.7247 |
mg/l |
Selenastrum capricotum |
Growth rate |
6 |
EC50 |
>978.0 |
mg/l |
Selenastrum capriconutum |
Growth rate |
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