Cyanoguanidine CAS N°: 461-58-5

OECD SIDS
CYANOGUANIDINE
4. ECOTOXICITY ID: 461-58-5
DATE: 25.02.2004
4.1 ACUTE/PROLONGED TOXICITY TO FISH
40
Type : semistatic
Species : Oryzias latipes (Fish, fresh water)
Exposure period : 96 hour(s)
Unit : mg/l
Analytical monitoring : yes
LC0 : m >= 100
LC50 : m > 100
LC100 : m > 100
Method : OECD Guide-line 203 "Fish, Acute Toxicity Test"
Year : 1998
GLP : yes
Test substance : other TS
Result : RESULTS:
- Measured concentrations:
------------------------- --------------------------- --------------------------------------
Nominal
Measured concentration [mg/L] (% of nominal)
concentration 0-hour 48-hour
[mg/L] (fresh solutions) (expired solutions)
------------------------- --------------------------- --------------------------------------
Control 100 mg/L
72 hr LC50 > 100 mg/L
96 hr LC50 > 100 mg/L
96 hr lowest concentration resulting in 100% mortality > 100 mg/L
96 hr highest concentration resulting in 0% mortality >= 100 mg/L
- Other effects:
No toxicological symptom was observed at during test period.
RESULTS: TEST WITH REFERENCE SUBSTANCE
- Reference substance: CuSO4-5H2O- Results: 96 hr LC50 = 0.930 mg/L
Test condition : TEST ORGANISMS- Strain: Oryzias latipes
- Supplier: NAKAJIMA FISH HATCERY (Japan)
- Size/weight: 1.9 cm (1.8 - 2.1 cm), n = 10 / 0.11 g (0.077 - 0.14 g), n = 10
- Feeding: "TETRAMIN"
- Pretreatment: acclimated for 7 day before testing, mortality was less than
5%. Not fed for 24 hr before the test started.
- Feeding during test: none
STOCK AND TEST SOLUTION AND THEIR PREPARATION
- Vehicle, solvent: No solvent was used.
STABILITY OF THE TEST CHEMICAL SOLUTIONS:
Cyanoguanidine was stable, and not hydrolyzed after 48 hrs.
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