Registration Dossier

Administrative data

Endpoint:
phototransformation in air
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1987
Report date:
1987

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: Pesticide Assessment Guidelines U.S. EPA 540/9-82-021
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
EPTC
EC Number:
212-073-8
EC Name:
EPTC
Cas Number:
759-94-4
Molecular formula:
C9H19NOS
IUPAC Name:
N,N-dipropyl(ethylsulfanyl)formamide

Study design

Light source:
other: artificial UV source

Results and discussion

Preliminary study:
The level of EPTC in dark control remained constant throughout the 33 day- period, confirming that the compound is stable hydrolytically under test conditions. The pseudo-first order photolysis rate is 0,00788 and the half-life is 88 days.
Test performance:
The level of EPTC in dark control remained constant throughout the 33 day- period, confirming that the compound is stable hydrolytically under test conditions. The pseudo-first order photolysis rate is 0,00788 and the half-life is 88 days.

Applicant's summary and conclusion

Conclusions:
The level of EPTC in dark control remained constant throughout the 33 day- period, confirming that the compound is stable hydrolytically under test conditions. The pseudo-first order photolysis rate is 0,00788 and the half-life is 88 days.
The photolysis rate of EPTC in aqueous solution at pH 7 at 25 C has been determined.
Executive summary:

The level of EPTC in dark control remained constant throughout the 33 day- period, confirming that the compound is stable hydrolytically under test conditions. The photolysis rate of EPTC in aqueous solution at pH 7 at 25 C has been determined. The pseudo-first order photolysis rate is 0,00788 and the half-life is 88 days.