Registration Dossier
Registration Dossier
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EC number: 306-004-1 | CAS number: 95465-89-7
Endpoint summary
Administrative data
Description of key information
The members of this category are gases and will predominantly partition to the atmosphere. This will limit their aquatic toxicity. Due to the difficulty associated with conducting aquatic toxicity tests, experimental data were not available for the members of this category. In the absence of measured data, estimated data were calculated using the QSAR model.
ECOSAR Program v1.00. in EPI Suite v4.00. Calculations were conducted using substances which were considered representative of the category (butane, isobutane, butene, isobutene). The toxicity of the substances was calculated to range from 7.7 mg/L to 27.9 mg/L for the different aquatic taxanomic groups.These values indicate that the toxicity criteria stipulated in Annex XIII are unlikely to be met. Therefore, this Category is not considered to be T on the basis of the screening criterion.
CAS Numbers 92045-23-3 and 95465-89-7 are both listed in Annex I of Directive 67/548/EEC replaced by Table 3.2 in Annex VI to CLP Annex I but are not classified for environmental hazards. Additionally constituent substances, butane, isobutene, butene and isobutene are listed in Annex 1 of Directive 67/548/EEC replaced by Table 3.2 in Annex VI to CLP but are not classified for environmental hazards. This Category would not be classified for environmental hazards.
Additional information
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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