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Cyanoguanidine CAS N°: 461-58-5

Cyanoguanidine CAS N°: 461-58-5

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OECD SIDS<br />

CYANOGUANIDINE<br />

5. TOXICITY ID: <strong>461</strong>-<strong>58</strong>-5<br />

DATE: 25.02.2004<br />

Method : other<br />

Year : 1985<br />

GLP : yes<br />

Test substance : other TS<br />

Remark : The result essentially is not influence of dicyandiamide.<br />

Result : Without metabolic activation: Statistically significant increases in sister<br />

exchanges were observed at 333 nL/mL and 1.0 uL/mL with a dose<br />

response established observed the test article is considered positive in the<br />

sister chromatid exchange assay under of non-metabolic activation.<br />

With metabolic activation: There were statistically significant increases in<br />

sister exchanges were observed at 3.3 uL/mL and 10.0 uL/mL with a dose<br />

response established. The test article is considered positive under the<br />

condition of metabolic activation in the sister chromatid exchange assay.<br />

Test condition : Metabolic activation system: S-9 from male Sprague-Dawley induced<br />

Aroclor 1254, S-9 15 uL/mL of S-9 mix<br />

Controls:<br />

Negative control; McCoy's 5a medium<br />

Solvent control; DMSO<br />

Positive control; Mitomycin C<br />

Test substance : Dicyandiamide was one component of a rigidite.<br />

The rigidite was used in this test.<br />

Reliability : (4) not assignable<br />

26.11.2003 (30)<br />

5.6 GENETIC TOXICITY ‘IN VIVO‘<br />

5.7 CARCINOGENITY<br />

Species : rat<br />

Sex : male/female<br />

Strain : Fischer 344<br />

Route of admin. : oral feed<br />

Exposure period : 104 weeks<br />

Frequency of<br />

: ad lib.<br />

treatment<br />

Post. obs. period : 9 weeks<br />

Doses : 2.5, 5.0 % (converted values: male; equivalent to 837.2 and 19<strong>58</strong>.6<br />

mg/kg/day, female; equivalent to 1001.3 and 2169.2 mg/kg/day)<br />

Result : negative<br />

Control group : yes<br />

Method : other<br />

Year :<br />

GLP : no data<br />

Test substance : other TS<br />

Result : -Non-neoplastic lesions<br />

-------------------------------------------------------------------------------------------<br />

No. of rats with lesions<br />

Male Female<br />

Dose (%) 0 2.5 5 0 2.5 5<br />

-------------------------------------------------------------------------------------------<br />

Effective No. of rats 49 50 49 49 50 50<br />

------------------------------------------------------------------------------------------<br />

Liver<br />

Bile duct hyperplasia 44 46 47 10 15 23**<br />

Hepatocellular altered foci 25 31 33 32 38 40<br />

-------------------------------------------------------------------------------------------<br />

Kidney<br />

UNEP PUBLICATIONS 65

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