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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:
p-toluidine
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