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EC number: 227-876-9
CAS number: 6021-61-0
All the biodegradability values have been
corrected for blank values
A MITI (II) test was performed to
investigate the biodegradability potential of the substance; the method
was chosen due to the low solubility of the test material in water. TOC
analysis on the test material was not performed for the same reason.
Percentage degradation values were calculated by comparison of the
oxygen uptake with Chemical Oxygen Demand.
Test item attained negligible degradation
within 28 days (0 - 19 % over the whole experiment period) calculated
from oxygen uptake, therefore, it cannot be considered as inherently
biodegradable under the strict terms and conditions of the OECD
A negligible degradation was also observed
from comparison of the oxygen uptake values against ThOD. The
variability in the degradation valves of the test material were the
result of background variation of the oxygen uptake of the control
Aniline attained 56 % biodegradation after
7 days and 70 % after 14 days thereby confirming the suitability of the
inoculum and culture conditions. Total Organic Carbon (TOC) showed that
aniline attained 94 % degradation, after 28 days.
The substance is not inherently
Neither readily nor inherently
The substance belongs to the class of
monoazo disperse dyes, which are substantially water-insoluble nonionic
dyes for application to hydrophobic fibers from aqueous dispersion. The
substance is not expected to be ready biodegradable because of its
chemical structure and its specific function. Commonly, dyes undergo a
primary transformation, i.e. discolouration due to interruption of the
conjugation. Nevertheless, the degradation process involves more steps
and take more time.
There are no experiments on the
biodegradability potential of Disperse Red 054 performed in accordance
with currently common scientific standards and described in sufficient
detail. In a sheet of results, COD of 1667 mg/g and a BOD of 11 mg/g are
reported; the related ratio is reported to be 0.7 % (BOD/COD) (report,
1991). The mentioned data, support the expectation of a low degradability
In order to further support the expected
biodegradability potential and in order to better clarify the substance
behavior, available data on the structural analogue Similar Substance 01
has been taken into consideration. The read across approach can be
considered as suitable and appropriate to investigate biodegradation
(details on the read across approach are given into the document
attached into the IUCLID section 13).
A MITI (II) test was performed to
investigate the biodegradability potential of Similar Substance 01. Test
item attained negligible degradation within 28 days (0 - 19 % over the
whole experiment period) calculated from oxygen uptake, thus, it cannot
be considered as inherently biodegradable under the strict terms and conditions
of the OECD guideline. A negligible degradation was also observed from
comparison of the oxygen uptake values to ThOD.
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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