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EC number: 277-955-7
CAS number: 74664-50-9
The substance was not retained on the
column. The log Koc was estimated to be < -3 by extrapolation.
The test has been conducted according to
the OECD guideline 121. Information was derived from migrated NONS file,
as per Article 25(3) request, with permission to refer granted by ECHA.
Koc < 1.45
logKoc < -3.
Koc < 1.45 logKoc < -3.
Due to the
lack of data on Direct Blue 273, a read across approach was followed,
using Similar Substance 01, i.e. an isomer of Direct Blue 273, differing
only for the position of a functional group on an aromatic ring. Further
details on the read across approach are included in section 13.
The evaluation of the
adsorption/desorption coefficient of Direct Blue 273 has been based on a
study conducted on Similar Substance 01.
This study was conducted according to the
OECD guideline 121, in compliance with GLP principles. Information
derived from migrated NONS file, as per Article 25(3) request, with
permission to refer granted by ECHA.
Test substance was not retained on the
column and showed a Koc value < 1.45 (the log Koc was estimated < -3 by
Based on the structural similarity, Koc
and logKoc values of Similar Substance 01 are expected to be
representative also for Direct Blue 273.
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.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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