Registration Dossier
Registration Dossier
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EC number: 208-358-1 | CAS number: 524-38-9
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 017
- 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
- Reference substance name:
- N-hydroxyphthalimide
- EC Number:
- 208-358-1
- EC Name:
- N-hydroxyphthalimide
- Cas Number:
- 524-38-9
- Molecular formula:
- C8H5NO3
- IUPAC Name:
- 2-hydroxy-2,3-dihydro-1H-isoindole-1,3-dione
- Details on test material:
- SMILES:ON1C(=O)c2ccccc2C1=O
Constituent 1
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): 2-hydroxy-1H-isoindole-1,3(2H)-dione
- Molecular formula: C8 H5 N O3
- Molecular weight: 163.132 g/mol
- Smiles notation: c12c(C(=O)N(C1=O)O)cccc2
- InChI: 1S/C8H5NO3/c10-7-5-3-1-2-4-6(5)8(11)9(7)12/h1-4,12H
- Substance type: Organic
- Physical state: Solid
Results and discussion
pH value
- Key result
- pH value:
- 5.31
- Temp.:
- 27 °C
- Concentration:
- 1 other: %w/v
Acidity or alkalinity
- Key result
- Acidity or alkalinity:
- acidity
- Value:
- 5.31
Applicant's summary and conclusion
- Conclusions:
- The pH of 1% w/v solution of the test item 2-hydroxy-1H-isoindole-1,3(2H)-dione (CAS No524-38-9)was 5.31 at27 °C.
- Executive summary:
The pH determination of test item 2-hydroxy-1H-isoindole-1,3(2H)-dione(CAS No 524-38-9) 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 5.31at 27 °C.
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