Registration Dossier
Registration Dossier
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EC number: 202-762-1 | CAS number: 99-52-5
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-03-04 – 2017-03-04
- 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:
- 2-methyl-4-nitroaniline
- Cas Number:
- 99-52-5
- Molecular formula:
- C7H8N2O2
- IUPAC Name:
- 2-methyl-4-nitroaniline
- Test material form:
- solid
- Details on test material:
- - Name of test material (as cited in study report): 2-methyl-4-nitroaniline
- Molecular formula: C7 H8 N2 O2
- Molecular weight: 152.152 g/mol
- Smiles notation: c1(cc(c(N)cc1)C)[N+](=O)[O-]
- InChI: 1S/C7H8N2O2/c1-5-4-6(9(10)11)2-3-7(5)8/h2-4H,8H2,1H3
- Substance type: Organic
- Physical state: Solid
Constituent 1
- Specific details on test material used for the study:
- - Name of test material (as cited in study report): 2-methyl-4-nitroaniline
- Molecular formula: C7 H8 N2 O2
- Molecular weight: 152.152 g/mol
- Smiles notation: c1(cc(c(N)cc1)C)[N+](=O)[O-]
- InChI: 1S/C7H8N2O2/c1-5-4-6(9(10)11)2-3-7(5)8/h2-4H,8H2,1H3
- Substance type: Organic
- Physical state: Solid
Results and discussion
pH value
- pH value:
- 4.88
- Temp.:
- 30 °C
- Concentration:
- 1 other: %w/v
Applicant's summary and conclusion
- Conclusions:
- pH of 1% w/v aqueous solution of the test substance 2-methyl-4-nitroaniline is 4.88 at 30 °C.
- Executive summary:
pH of 1% w/v aqueous solution of the test substance 2-methyl-4-nitroaniline is 4.88 at 30 °C. Thus, 1% solution can be considered to be near neutral in pH.
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