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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 288-538-4 | CAS number: 85750-13-6
Endpoint summary
Administrative data
Description of key information
Biodegradation in water:
Estimation Programs Interface Suite (EPI suite, 2018) was run to predict the biodegradation potential of the test compound 4-[(2-chloro-4-nitrophenyl)diazenyl]-N-ethyl-N-[2-[1-(2-methylpropoxy)ethoxy]ethyl]aniline(CAS no. 85750 -13 -6) in the presence of mixed populations of environmental microorganisms. The biodegradability of the substance was calculated using seven different models such as Linear Model, Non-Linear Model, Ultimate Biodegradation Timeframe, Primary Biodegradation Timeframe, MITI Linear Model, MITI Non-Linear Model and Anaerobic Model (called Biowin 1-7, respectively) of the BIOWIN v4.10 software. The results indicate that chemical 4-[(2-chloro-4-nitrophenyl)diazenyl]-N-ethyl-N-[2-[1-(2-methylpropoxy)ethoxy]ethyl]aniline is expected to be not readily biodegradable.
Additional information
Biodegradation in water:
Predicted data study for target chemical 4-[(2-chloro-4-nitrophenyl)diazenyl]-N-ethyl-N-[2-[1-(2-methylpropoxy)ethoxy]ethyl]aniline(CAS no. 85750 -13 -6) and supporting weight of evidence study for its read across chemical have been reviewed for biodegradation endpoint.
In a predicted data study Estimation Programs Interface Suite (EPI suite, 2018) was run to predict the biodegradation potential of the test compound 4-[(2-chloro-4-nitrophenyl)diazenyl]-N-ethyl-N-[2-[1-(2-methylpropoxy)ethoxy]ethyl]aniline(CAS no. 85750 -13 -6) in the presence of mixed populations of environmental microorganisms. The biodegradability of the substance was calculated using seven different models such as Linear Model, Non-Linear Model, Ultimate Biodegradation Timeframe, Primary Biodegradation Timeframe, MITI Linear Model, MITI Non-Linear Model and Anaerobic Model (called Biowin 1-7, respectively) of the BIOWIN v4.10 software. The results indicate that chemical 4-[(2-chloro-4-nitrophenyl)diazenyl]-N-ethyl-N-[2-[1-(2-methylpropoxy)ethoxy]ethyl]aniline is expected to be not readily biodegradable.
Next study was reviewed from authoritative database in this study the Biodegradation experiment was carried out of test chemical by taking activated sludge as inoculums at 100 mg/L concentration for 28 days. Biodegradation was analyzed by using two parameters that are BOD and UV vis .The initial concentration of test chemical was 30 mg/L. After 4 weeks of incubation percent biodegradation of test chemical was observed 0.0 % by BOD parameter 4.0 % by UV vis parameter in 28 days. Therefore it is concluded that test chemical not readily biodegradable.
Another study was also experimental reviewed from authoritative database in this study the Biodegradation experiment was conducted for 28 days for evaluating the percentage biodegradability of test chemical. Concentration of inoculum i.e, sludge u1 -(4 -Methyl-2 -nitrophenylazo)-2 -naphthosed was 30 mg/l and initial test substance conc. used in the study was 100 mg/l, respectively. The percentage degradation of test substance was determined to be 0 and 1% by BOD and HPLC parameter in 28 days. Thus, based on percentage degradation value is considered to be not readily biodegradable in nature.
On the basis of results of all the studies mentioned above it can be concluded that test chemical 4-[(2-chloro-4-nitrophenyl)diazenyl]-N-ethyl-N-[2-[1-(2-methylpropoxy)ethoxy]ethyl]aniline (CAS no. 85750 -13 -6) is expected to be not biodegradable.
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.
