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EC number: 222-048-3
CAS number: 3327-22-8
CHPTAC is not readily biodegradable according
to the available information from screening tests.
Simulation studies on the ultimate
degradation in surface water and sediment are not needed as the chemical
safety assessment according to Annex I indicates that exposure of the
substance to surface water and sediment is not expected.
From the two available guideline
studies (modified Sturm test (OECD 301B) and STP simulation test (OECD
303A)) it can be concluded that CHPTAC is not readily biodegradable.
In other, non-standard tests some
removal of CHPTAC has been observed. The conclusion of the ESR Risk
Assessment for CHPTAC was that the substance could be considered
"inherently biodegradable not meeting specific criteria".“From the two
guideline studies (modified Sturm test (OECD 301B) and STP simulation
test (OECD 303A)) it can be concluded that CHPTAC is not readily
biodegradable. However, the removal rate constant received from the STP
simulation test (0.065 h−1) is close to removalrate for
inherently degradable substance, which fulfils the criteria set in the
TGD (0.1 h−1).”
(cited from European Union Risk
Assessment Report on CAS # 3327-22-8, 2008).
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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