Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Administrative data

Endpoint:
phototransformation in water
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well documented publication which meets basic scientific principles.

Data source

Reference
Title:
No information
Author:
Larson RA, Ellis DD, Ju HL, Marley (1989). Flavin-sentitized photodecomposition of anilines and phenols. Environ. Tox. Chem. 8, 1165-1170.

Materials and methods

Principles of method if other than guideline:
The disappearance of p-toluidine in present of the photosensitizer riboflavin was followed by reverse phase high-pressure liquid chromatography (HPLC) using a Hamilton PRP-1 column and a Kratos Spectroflow 757 variable wavelength absorbance detector.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
p-toluidine
EC Number:
203-403-1
EC Name:
p-toluidine
Cas Number:
106-49-0
Molecular formula:
C7H9N
IUPAC Name:
4-methylaniline
Details on test material:
- Name of test material (as cited in study report): p-toluidine
- p-toluidine was obtained commercially and was used without further purification
- Analytical purity: no data

Study design

Light source:
other: mercury arc lamp
Light spectrum: wavelength in nm:
> 300
Sensitiser (for indirect photolysis)
Type of sensitiser:
other: riboflavin
Concentration of sensitiser:
5 other: µM

Results and discussion

Transformation products:
not measured

Any other information on results incl. tables

- P-Toluidine was virtually inert to direct photolysis (without riboflavin).
- In the presence of riboflavin it was rapidly photodecomposed: t1/2 =
 0.7 min.

Applicant's summary and conclusion