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EC number: 212-454-9
CAS number: 818-61-1
Table: Observed mortality after 1, 4, 24,
48, 72 and 96 hours exposure.
Nominal concentration (mg/L)
Number of fish
Dead fish after
The 96-h LC50 value is 4.8 mg/L in fish (Pimephales
Marine water fish
The 96-h LC50 value is 17.5 mg/L in fish (Cyprinodon
The acute toxicity to fish was
investigated in several studies using different species.
Specifics on conditions of the studies and results are tabulated below.
ASTM 1980 / not specified
measured (arithm. mean)
Russom et al., 1988
OECD 203 / yes
DIN 38412 L15 / no
No guideline followed / no
measured (arith. mean);
Based on read-across from CAS 25584-83-2
All of the studies that determined the acute
toxicity of 2-hydroxyethyl acrylate to freshwater fish, derived similar
effect values (in the range of 1 - 10 mg/L). The lowest determined
effect value of 4.6 mg/L (Russom, 1988) will be used as key value for
the chemical safety assessment for freshwater fish. Also data on a
saltwater fish species is available. The 96-h LC50 in saltwater species Cyprinodon
variegatus was determined to be 17.5 mg/L (Dow, 1978) and will be
used key value for the chemical safety assessment for marine water fish.
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