Registration Dossier
Registration Dossier
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EC number: 203-788-6 | CAS number: 110-65-6
Toxicity to birds
Administrative data
Link to relevant study record(s)
Description of key information
LD50 (Red-Winged Blackbird) = 75 mg/kg-bw
NOEC (Quail, male) = 56.2 mg/kg-bw based on fertility of eggs from female mate.
Key value for chemical safety assessment
Additional information
Avian testing is not needed due to the large mamallian dataset available on 1,4-Butynediol and based on a measured LD50 of 75 mg/kg-bw (Schafer, et. al., 1983) for red-winged blackbirds (Agetaius phoeniceus) and a NOEC of 56.2 mg/kg-bw for male quail based on the fertility of eggs from female mates (Schafer, et. al., 1982).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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