Registration Dossier
Registration Dossier
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EC number: 271-524-7 | CAS number: 68583-95-9 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 16035:1.
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:
- guideline study
- Justification for type of information:
- Experimental data obtained using standard method of analysis
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: OECD 122
- Principles of method if other than guideline:
- The pH determination of test chemical was done as per the test guideline OECD 122.
- GLP compliance:
- no
Test material
- Reference substance name:
- Aluminium, 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex
- EC Number:
- 271-524-7
- EC Name:
- Aluminium, 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex
- Cas Number:
- 68583-95-9
- Molecular formula:
- C18H17N2O8S2Al1
- IUPAC Name:
- aluminium, 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex
- Test material form:
- solid
- Details on test material:
- - Name of test material (IUPAC name): aluminium, 6-hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonic acid complex
- Molecular formula: C18H17N2O8S2Al1
- Molecular weight: 480.45 g/mol
- Smiles notation: CC1=CC(=C(C=C1S(=O)(=O)O)OC)NN=C2C3=C(C=CC2=O)C=C(C=C3)S(=O)(=O)O.[Al]
- InChl: 1S/C18H16N2O8S2.Al/c1-10-7-14(16(28-2)9-17(10)30(25,26)27)19-20-18-13-5-4-12(29(22,23)24)8-11(13)3-6-15(18)21;/h3-9,19H,1-2H3,(H,22,23,24)(H,25,26,27);/b20-18-;
- Substance type: Organic
- Physical state: Solid
Constituent 1
Results and discussion
pH value
- Key result
- pH value:
- 4.38
- Temp.:
- 36 °C
- Concentration:
- 1 vol%
- Remarks on result:
- other: acidic
Applicant's summary and conclusion
- Conclusions:
- The pH determination of test chemical was done following OECD guideline 122. pH of 1% w/v dispersion in water was measured with the help of pH meter and it was observed to be 4.38 at 36 °C.
- Executive summary:
The pH determination of test chemical was done following OECD guideline 122. pH of 1% w/v dispersion in water was measured with the help of pH meter and it was observed to be 4.38 at 36 °C.
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