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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: 202-549-3 | CAS number: 96-98-0
Partition coefficient
Administrative data
- Endpoint:
- partition coefficient
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: well performed OECD study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 013
- Report date:
- 2013
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 107 (Partition Coefficient (n-octanol / water), Shake Flask Method)
- Deviations:
- not specified
- GLP compliance:
- no
- Type of method:
- shake-flask method to: flask method
- Partition coefficient type:
- octanol-water
Test material
- Reference substance name:
- 3-nitro-p-toluic acid
- EC Number:
- 202-549-3
- EC Name:
- 3-nitro-p-toluic acid
- Cas Number:
- 96-98-0
- Molecular formula:
- C8H7NO4
- IUPAC Name:
- 4-methyl-3-nitrobenzoic acid
- Details on test material:
- Purity: 98.0 %
Constituent 1
Study design
- Analytical method:
- photometric method
Results and discussion
Partition coefficient
- Type:
- log Pow
- Partition coefficient:
- 1.65
- Temp.:
- 23 °C
- pH:
- > 6.3 - < 6.7
- Details on results:
- determ. no. stock solution water test substance test substance log Pow
conc. in n- conc. in water
octanol phase phase
[ml] [ml] [mg/l] [mg/l]
A1 5 10 764.7 16.6 1.66
A2 5 10 766.3 16.6 1.66
B1 10 10 769.9 16.4 1.67
B2 10 10 765.3 17.2 1.65
C1 20 10 771.1 18.0 1.63
C2 20 10 762.0 18.2 1.62
mean 1.65
Applicant's summary and conclusion
- Conclusions:
- Log Pow was found to be 1.65 at 23°C
- Executive summary:
The partition coefficient n-octanol/water of the substance was determined according to OECD guideline 107 (shake flask method).
Log Pow was found to be 1.65 at 23°C.
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.
