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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
hydrolysis
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From Mar. 10, 1989 to Mar. 30, 1989
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Well documented, according to accepted guideline, with GLP-like Quality Assurance

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report date:
1989

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EEC directive 84/449 C.10
Deviations:
no
GLP compliance:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
3-(3-tert-butyl-4-hydroxyphenyl)propionic acid
EC Number:
403-920-4
EC Name:
3-(3-tert-butyl-4-hydroxyphenyl)propionic acid
Cas Number:
107551-67-7
Molecular formula:
C13H18O3
IUPAC Name:
3-(3-tert-butyl-4-hydroxyphenyl)propanoic acid
Details on test material:
- Lot/batch No.: EN.116905.72

Study design

Analytical monitoring:
yes
Details on sampling:
- Sampling intervals for the parent/transformation products: 2.4 hours and 5 days
Buffers:
pH 4:
standard acetate buffer ( 0.1 mole/1 acetic acid + 0.1 mole/1 sodium acetate ) + 15 ml acetic acid per liter.

pH 7:
0.041 mole di-sodium-hydrogenphosphate + 0.028 mole potassium-dihydrogenphosphate per liter.

pH 9:
0.043 mole di-sodium-tetraborate + 0.017 mole potassium-dihydrogenphosphate per liter.
Details on test conditions:
Report states according to EEC guideline 84/449 C.10
Duration of testopen allclose all
Duration:
2.4 h
pH:
4
Temp.:
50 °C
Initial conc. measured:
ca. 0.71 g/L
Duration:
2.4 h
pH:
7
Temp.:
50 °C
Initial conc. measured:
ca. 0.71 g/L
Duration:
2.4 h
pH:
9
Temp.:
50 °C
Initial conc. measured:
ca. 0.71 g/L
Duration:
5 d
pH:
4
Temp.:
50 °C
Initial conc. measured:
ca. 0.71 g/L
Duration:
5 d
pH:
7
Temp.:
50 °C
Initial conc. measured:
ca. 0.71 g/L
Duration:
5 d
pH:
9
Temp.:
50 °C
Initial conc. measured:
ca. 0.71 g/L
Number of replicates:
2 replicates per treatment condition
Positive controls:
not specified
Negative controls:
not specified
Statistical methods:
none reported

Results and discussion

Preliminary study:
The test substance is stable at pH 4, 7, and 9 (less than 10% decomposition after 5 days)
Transformation products:
not measured
Details on hydrolysis and appearance of transformation product(s):
not reported
Details on results:
The test substance is stable at pH 4, 7, and 9 (less than 10% decomposition after 5 days)

Applicant's summary and conclusion