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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-01-18 – 2017-01-18
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Data is from experimental study report.

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: as mentioned below
Principles of method if other than guideline:
The mean pH of an aqueous solution or dispersion in water is determined with a pH measurement interface equipped with an appropriate electrode system.
GLP compliance:
not specified

Test material

Constituent 1
Chemical structure
Reference substance name:
4-methoxyphenylacetic acid
EC Number:
203-166-4
EC Name:
4-methoxyphenylacetic acid
Cas Number:
104-01-8
Molecular formula:
C9H10O3
IUPAC Name:
(4-methoxyphenyl)acetic acid
Test material form:
solid
Specific details on test material used for the study:
- Name of test material: 4-methoxyphenylacetic acid
- Molecular formula: C9 H10 O3
- Molecular weight: 166.175 g/mol
- Smiles notation: c1(ccc(OC)cc1)CC(O)=O
- InChl: 1S/C9H10O3/c1-12-8-4-2-7(3-5-8)6-9(10)11/h2-5H,6H2,1H3,(H,10,11)
- Substance type: Organic
- Physical state: solid

Results and discussion

pH value
pH value:
2.83
Temp.:
27 °C
Concentration:
1 other: %w/v
Acidity or alkalinity
Acidity or alkalinity:
acidity
Value:
2.83

Applicant's summary and conclusion

Conclusions:
The pH of 1% w/v dispersion of the test item 4-methoxyphenylacetic acid (CAS No104-01-8) was 2.83 at 27 °C.
Executive summary:

The pH determination of test item 4-methoxyphenylacetic acid (CAS No 104-01-8) was done following OECD guideline122. pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 2.83 at 27 °C.Based on the result, 4-methoxyphenylacetic acid (CAS No 104-01-8) was considered to be acidic in nature.

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