Registration Dossier
Registration Dossier
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EC number: 800-362-7 | CAS number: 1307863-78-0
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The 72h-EC10 (growth rate) and the 72h-EC50 (growth rate) are 0.319 and 0.502 mg/L respectvely (based on nominal concentrations corrected for active ingredient) in a OECD guideline 201 test with Pseudokirchneriella subcapitata under GLP (reliability 1).
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 0.502 mg/L
- EC10 or NOEC for freshwater algae:
- 0.319 mg/L
Additional information
The toxicity of Amines, N-C16-C18-alkyl-(evennumbered,C18 unsaturated) propane-1,3-diaminium di[(9Z)-octadec-9-enoate] to the unicellular freshwater green alga Pseudokirchneriella subcapitata was determined according to the principles of OECD 201. Algae were exposed to nominal concentrations of 0.100 - 0.178 - 0.316 - 0.562 - 1.00 mg/L for 72 hours. The results of the test are shown in the table below. Corrected for active ingredient, the 72h-EC10 and 72h-EC50 are 0.319 and 0.502 mg/L respectively.
Inhibition of Growth Rate |
||
Nominal [mg test item/L] |
Geometric mean measured [mg test item/L] |
|
NOEC |
0.178 |
0.0537 |
LOEC |
0.316 |
0.117 |
ErC10 |
0.324 (0.282 – 0.380) |
0.121 (0.102 – 0.146) |
ErC20 |
0.389 (0.349 – 0.429) |
0.151 (0.132 – 0.169) |
ErC50 |
0.509 (0.482 – 0.530) |
0.209 (0.195 – 0.219) |
Inhibition of Yield |
||
NOEC |
0.100 |
0.0301 |
LOEC |
0.100 |
0.0301 |
EyC10 |
0.100 |
0.0301 |
EyC20 |
0.243 ( 0.100 – 0.286) |
0.0840 ( 0.0301 – 0.103) |
EyC50 |
0.339 (0.324 – 0.403) |
0.128 (0.121 – 0.154) |
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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