Registration Dossier
Registration Dossier
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EC number: 279-791-1 | CAS number: 81646-13-1
Endpoint summary
Administrative data
Description of key information
Additional information
ABIOTIC
DEGRADATION IN AIR
DIRECT PHOTOLYSIS in air
The
submission substance does not absorb light >290 nm (ozone band) and
therefore a direct photolysis in air will not occur.
INDIRECT PHOTOLYSIS in air
OH radical induced indirect photolysis of the submission substance can be estimated with US EPA AOPWIN Program estimating low degradation half-lives (C20 homologue 9.7h, C22 homologue 9h). Concluding from the Henry's Law Constant of <1.0*10-5 Pa*m3/mole for the supporting substance C20/22 ATQ (CAS 68607-24-9) (see IUCLID Sections 4.6 & 4.8), volatilisation is not an exposure route which has to be considered.
ABIOTIC DEGRADATION IN WATER
HYDROLYSIS
The submission substance has no functional groups which could be hydrolyzed under envrionmental conditions as stated in OECD Guideline 111. In addition the supporting substance C20/C22 ATQ (68607-24-9) is readily biodegradable, leading to the conclusion of ready biodegradability for the submission substance, too.
DIRECT
PHOTOLYSIS in water
The
submission substance does not absorb light >290 nm (ozone band) and
therefore a direct photolysis in water will not occur.
INDIRECT PHOTOLYSIS in water
OH radical induced indirect photolysis of the submission substance in air can be estimated with US EPA AOPWIN Program estimating low degradation half-lives (C20 homologue 9.7h, C22 homologue 9h). Therefore the submission substance may also be degraded in water by indirect photolysis if sufficent OH radicals were available. As the supporting substance C20/22 ATQ is rapidly biodegraded in surface water (see IUCLID Section 5.2.2) and rapid biodegradation is also assumed for the submission substance, indirect photolysis will play a minor role in degradation.
ABIOTIC DEGRADATION IN SOIL
DIRECT PHOTOLYSIS in soil
The submission substance does not absorb light >290 nm (ozone band) and therefore a direct photolysis on soil surface will not occur.
INDIRECT PHOTOLYSIS in soil
OH radical induced indirect photolysis of the submission substance in air can be estimated with US EPA AOPWIN Program estimating low degradation half-lives (C20 homologue 9.7h, C22 homologue 9h). Therefore the submission substance may be degraded on soil surface by indirect photolysis but as the supporting substance C20/22 ATQ is rapildly biodegraded in aerobic soils (see IUCLID Section 5.2.3) indirect photolysis will play a minor role in degradation.
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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