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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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 air
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: (Q)SAR calculation, acceptable with restrictions

Data source

Reference
Reference Type:
other: (Q)SAR
Title:
AOPwin v1.92a (June 2008)
Author:
U.S. Environmental Protection Agency
Year:
2000
Bibliographic source:
U.S.E.P.A. EPIWEB 4.0

Materials and methods

GLP compliance:
no
Remarks:
not applicable - QSAR model

Test material

Constituent 1
Chemical structure
Reference substance name:
Benzyl butyl phthalate
EC Number:
201-622-7
EC Name:
Benzyl butyl phthalate
Cas Number:
85-68-7
Molecular formula:
C19H20O4
IUPAC Name:
1-benzyl 2-butyl benzene-1,2-dicarboxylate
Constituent 2
Reference substance name:
BBP
IUPAC Name:
BBP
Details on test material:
not applicable
Specific details on test material used for the study:
Details on properties of test surrogate or analogue material (migrated information):
not applicable

Study design

Estimation method (if used):
AOPWIN v1.92a (June 2008), EPIWEB 4.0
Details on light source:
not applicable
Details on test conditions:
not applicable

Results and discussion

Preliminary study:
not applicable
Test performance:
not applicable
Spectrum of substance
Parameter:
not specified
Dissipation half-life of parent compound
DT50:
11.616 h
Test condition:
Modelled estimate at 25°C
Results with reference substance:
not applicable

Any other information on results incl. tables

Overall OH rate constant = 11.0492 E-12 cm³/molecule-sec

Applicant's summary and conclusion

Validity criteria fulfilled:
not applicable
Remarks:
QSAR estimation
Conclusions:
The half life of BBP in air is 11.616 hours at 25°C.
Executive summary:

AOPWIN is a standard QSAR model that has been used previously in regulatory risk assessment. It is therefore considered acceptable for use as a key study for this endpoint.