Registration Dossier
Registration Dossier
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EC number: 274-972-1 | CAS number: 70879-65-1
pH
Administrative data
- Endpoint:
- pH
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 13.08.2012 - 04.09.2012
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: by pH meter
- Principles of method if other than guideline:
- Measured as negative log of Hydrogen Ion concentration using pH meter & appropriate Buffers of pH 4 & 9
- GLP compliance:
- no
Test material
- Reference substance name:
- 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs.
- IUPAC Name:
- 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs.
- Reference substance name:
- 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs.
- EC Number:
- 274-972-1
- EC Name:
- 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs.
- Cas Number:
- 70879-65-1
- Molecular formula:
- C23H17N4O
- IUPAC Name:
- 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs
- Details on test material:
- - Name of test material (as cited in study report): 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs.
- Substance type: Organic
- Physical state: liquid
Constituent 1
Constituent 2
Results and discussion
pH value
- pH value:
- 7.17
- Temp.:
- 24 °C
- Concentration:
- 1 vol%
- Remarks on result:
- other: Neutral
Applicant's summary and conclusion
- Conclusions:
- 1% solution of 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. was found to exhibit a pH of 7.17 at 24°C. Thus 1% by volume solution of 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. can be considered to be neutral in nature.
- Executive summary:
1% solution of 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. was found to exhibit a pH of 7.17 at 24°C. Thus 1% by volume solution of 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]-, ar',ar''-Me derivs. can be considered to be neutral in nature.
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