Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-03-01 – 2017-03-01
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: OECD 122
Principles of method if other than guideline:
A pH meter is essentially a voltmeter with high input impedance which measures the voltage of an electrode sensitive to the hydrogen ion concentration, relative to another electrode which exhibits a constant voltage
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
3-phenylpropionic acid
EC Number:
207-924-5
EC Name:
3-phenylpropionic acid
Cas Number:
501-52-0
Molecular formula:
C9H10O2
IUPAC Name:
3-phenylpropionic acid
Details on test material:
- Name of test material: 3-Phenylpropanoic Acid
- Molecular formula: C9H10O2
- Molecular weight: 150.176 g/mol
- Substance type: Organic
- Physical state: Solid
Purity: No data available
- Impurities (identity and concentrations):No data available
Specific details on test material used for the study:
- IUPAC name: 3-phenylpropanoic acid
- Molecular formula: C9 H10 O2
- Molecular weight: 150.176 g/mol
- Smiles: c1(CCC(O)=O)ccccc1
- InChI: 1S/C9H10O2/c10-9(11)7-6-8-4-2-1-3-5-8/h1-5H,6-7H2,(H,10,11)
- Substance type: Organic
- Physical state: solid

Results and discussion

pH value
Key result
pH value:
3.55
Temp.:
28 °C
Concentration:
1 other: %w/v
Acidity or alkalinity
Key result
Acidity or alkalinity:
acidity
Value:
3.55

Applicant's summary and conclusion

Conclusions:
The pH of 1% w/v solution of the test item 3-phenylpropionic acid (CAS No:501-52-0)was 3.55 at 28 °C.
Executive summary:

The pH determination of test item 3-phenylpropionic acid (CAS No 501-52-0) was done following OECD guideline 122. pH of 1% w/v solution was measured with the help of pH meter and it was observed to be 3.55 at 28 °C.