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EC number: 203-710-0
CAS number: 109-83-1
QSAR-Calculation with EPI-WIN tool of US-EPA (AOPWIN, v1.92) was
performed for N-methylethanolamine. An overall OH rate constant
(gas-phase reaction constant) of 79.1097 E-12 cm³/molecules-sec
and a half-life of 1.622 hours (0.135 days) for 12 -h day was
calculated. As proposed in the user's guidance of the model, a default
concentration of hydroxyl radicals in the northern hemisphere (1.5E6 OH
radicals/cm³) for 12 -h day was used for the calculation. No ozone
reaction as well as no nitrate radical reaction is estimated for the
A QSAR-Calculation with EPI-WIN tool of
US-EPA (AOPWin, v1.92) was performed for N-methylethanolamine. An
overall OH rate constant (gas-phase reaction constant) of 79.1097
E-12 cm3/molecules-sec and a half-life of 4.867 hours (= 0.203 days) for
24 -h day was calculated. A default concentration of hydroxyl radicals
in the northern hemisphere (0.5 E6 OH radicals/cm³) was used for the
calculation. No ozone reaction as well as no nitrate radical reaction is
estimated for the desired chemical.
After evaporation or exposure to the air, the product will be rapidly degraded by photochemical processes.
Article 13 of Regulation (EC) No 1907/2006, it is laid down that
information on intrinsic properties of substances may be generated by
means other than tests, provided that the conditions set out in Annex XI
(of the same Regulation) are met.
to Annex XI of Regulation (EC) No 1907/2006 (Q)SAR results can be used
if (1) the scientific validity of the (Q)SAR model has been established,
(2) the substance falls within the applicability domain of the (Q)SAR
model, (3) the results are adequate for the purpose of classification
and labeling and/or risk assessment and (4) adequate and reliable
documentation of the applied method is provided.
the assessment of N-Methylethanolamine (Q)SAR results were used for
phototransformation in air. The criteria listed in Annex XI of
Regulation (EC) No 1907/2006 are considered to be adequately fulfilled
and therefore the endpoint(s) sufficiently covered and suitable for risk
further experimental studies on phototransformation in air are not
the atmosphere N-Methylethanolamine (CAS 109 -83 -1) is expected to be
indirectly photodegraded with a half-life of 4.867 hours based on a 24
-h day and an OH radical concentration of 0.5E6 OH/cm³ (AOPWIN v1.92,
EPI Suite v4.12). Using a higher OH radical concentration of 1.5E6
OH/cm³ and a 12-h day, the half-life is calculated to be 1.622 h. The
overall OH rate constant was estimated to be 79.1E-12 cm³/molecule*sec.
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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