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EC number: 250-705-4
CAS number: 31566-31-1
No toxic effects up to the limit of water solubility (< 1 mg/L) for Danio rerio (OECD 203), read-across.
No studies investigating the short-term toxicity of Stearic acid,
monoester with glycerol (CAS No. 31566 -31 -1) to fish are available.
Therefore, in accordance to Regulation (EC) No. 1907/2006 Annex XI, 1.5
Grouping of substances, a read-across to the structurally related
category members Glycerides, C14-18 mono- and di- (CAS No. No.
67701-33-1) was conducted. Further justification is given within the
endpoint summary 6.1 and within the category justification section 13.
In this case of read-across, the best suited (highest degree of
structural similarity, nearest physico-chemical properties) read-across
substance within this category was used.
This GLP-study was conducted according to ISO guideline 7346-1.
Individuals of Danio rerio were exposed for 96 hours to the test
substance within a semi-static water regime, at nominal concentrations
of 3000 and 10000 mg/L (Guhl, 1992). No mortality was observed at any of
the tested concentrations and therefore the LC50 (96 h) was determined
to be > 10,000 mg/L (nominal concentration).
Based on the results obtained for the structurally related
analogue (in accordance with Regulation (EC) No. 1907/2006, Annex XI,
1.5), no acute toxicity of Stearic acid, monoester with glycerol (CAS
No. 31566 -31 -1) to fish up to the limit of its water solubility is
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