Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 203-328-4 | CAS number: 105-76-0
Endpoint summary
Administrative data
Description of key information
Additional information
In two different tests, the ready biodegradability of dibutyl maleinate could be shown. In both studies, the ten-day window criterion was met. According to Level III Mackay Fugacity Model, the main environmental compartments where it is distributed when released into the environment is soil. The Koc value of 473 L/kg does not indicate a high potential for adsorption to soil particles.
When reaching the water phase, dibutyl maleinate is hydrolytically degraded with a degradation half-life of about 4 days at 20°C. Only a small amount reaches the sediment. A persistence in this environmental compartment is not expected, based on its ready biodegradability and its potential for being degraded hydrolytically. Although a potential for bioaccumulation is indicated based on the estimated BCF of 81.34 L/kg, an accumulation under natural conditions is not expected based on metabolic transformation and elimination in the organism.
A Henry's Law constant of 0.3563 Pa*m³/mol indicates a low potency of dibutyl maleinate to volatilize from the water surface. By reaching the air, the atmospheric half-life of dibutyl maleinate is about 2 days assuming a 12 hour day and annual averaged conditions of the northern hemisphere.
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.
