Registration Dossier
Registration Dossier
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EC number: 485-280-6 | CAS number: 303749-96-4
Toxicity to aquatic algae and cyanobacteria
Administrative data
Link to relevant study record(s)
Description of key information
The toxicity to aquatic algae of 1H-Tetrazol-5-amine-,N-1H-tetrazol-5-yl-, mono- ammonium salt was determined according to OECD Guideline 201. Following biological results were obtained:
Endpoint NOEC LOEC EC50
Growth Rate 2.2 mg/L 4.6 mg/L 72h ErC50= 37 mg/L
AUC 2.2 mg 4.6 mg/L 72h EbC50 = 9.1 mg/L
Yield 2.2 mg 4.6 mg/L 72h EyC50= 5.5 mg/L
Key value for chemical safety assessment
- EC50 for freshwater algae:
- 37 mg/L
- EC10 or NOEC for freshwater algae:
- 2.2 mg/L
Additional information
Data obtained from a guideline study according to OECD guideline 201 and therefore considered reliable without restrictions.
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