Registration Dossier
Registration Dossier
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EC number: 251-646-7 | CAS number: 33703-08-1
Endpoint summary
Administrative data
Description of key information
Additional information
Partitioning of substances into the different environmental compartments depends mainly on their physico-chemical properties. Since the water solubility of Diisononyl adipate (DINA) is very low and the log Kow and log KOC values high, DINA is expected to mainly distribute to sediment and soil. However, as DINA is readily biodegradable according to the OECD criteria, the substance will not be persistent in the environment.
DINA is expected to slowly evaporate into the atmosphere based on a relatively low Henry law constant of 9.21 Pa*m3/mole. If entering the atmosphere, DINA will be rapidly degraded by photochemical processes. Thus, long-range transport through the atmospheric compartment is not expected. Abiotic hydrolysis is not relevant, since the substance is readily biodegradable and thus expected to be eliminated through biodegradation in natural waters. Additionally, an estimated rate of hydrolysis is low.
Based on the rapid environmental biodegradation and metabolism via enzymatic hydrolysis, relevant uptake and bioaccumulation in aquatic organisms is not expected. Enzymatic breakdown will initially lead to the free dicarboxylic acid and the free alcohol. From literature it is well known, that these hydrolysis products will be metabolised and excreted in fish effectively (for detailed information please see chapter 5.3 of technical dossiers). This is supported by low calculated BCF values calculated for DINA (BCF << 2000 L/kg ww; BCFBAF v3.01; Arnot-Gobas, including biotransformation, upper trophic).
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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