Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Currently viewing:

Administrative data

Link to relevant study record(s)

toxicity to aquatic algae and cyanobacteria
Type of information:
Adequacy of study:
supporting study
2 (reliable with restrictions)
Justification for type of information:
QSAR prediction
other: REACH Guidance on (Q)SAR
Principles of method if other than guideline:
Test organisms (species):
other: Green algae
Test type:
other: (Q)SAR
Water media type:
96 h
Dose descriptor:
Effect conc.:
98.07 mg/L
Dose descriptor:
other: Chronic Value (ChV)
Effect conc.:
26.669 mg/L
Validity criteria fulfilled:
Aliphatic Amines: Maximum LogKow: 7.0 (Green Algae EC50) - 7.0 (Chronic Value)
Estimated EC50 (96h) : 98 mg/L
Estimated Chronic Value : 26 mg/L
Intermediate substance is estimated to be harmful to aquatic algae (Acute Toxicity).

Description of key information

Short-term toxicity:

ECOSAR 1.11: Green Algae: EC50 (96h): 98.070mg/L

Danish (Q)SAR Database: Pseudokirchneriella s. 72h EC50:

Battery: 1015 mg/L

Leadscope: 1999 mg/L

SciQSAR: 30.29 mg/L


Long-term toxicity:

Indicated results for chronic toxicity are "Chronic values" as obtained from ECOSAR 1.11

ECOSAR 1.11: Green Algae: ChV: 26.669 mg/L

Key value for chemical safety assessment

EC50 for freshwater algae:
98 mg/L
EC10 or NOEC for freshwater algae:
26 mg/L

Additional information

NOEC could be estimated to around 18 mg/L (ChV/√2) as indicated in Practical Guide 5 - How to use and report (Q)SARs 3.0 (March 2016)

Intermediate substance is estimated to be harmful to aquatic algae (Acute toxicity).