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Diss Factsheets

Physical & Chemical properties

pH

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Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
27/08/2015-27/08/2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Data from experimental study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

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 substance Denatonium benzoate (CAS No.3734-33-6) was done as per the test guideline OECD 122. The pH of the test solution was determined with the help of pH meter.
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Denatonium benzoate
EC Number:
223-095-2
EC Name:
Denatonium benzoate
Cas Number:
3734-33-6
Molecular formula:
C21H29N2O.C7H5O2
IUPAC Name:
N-benzyl-2-[(2,6-dimethylphenyl)amino]-N,N-diethyl-2-oxoethanaminium benzoate hydrate
Test material form:
solid
Details on test material:
- Name of test material (as cited in study report): Denatonium benzoate
- IUPAC NAme : benzyl({[(2,6-dimethylphenyl)carbamoyl]methyl})diethylazanium benzoate hydrate
- Molecular formula: C21H29N2O.C7H5O2
- Molecular weight: 446.58 g/mol
- Smiles : CC[N+](CC)(Cc1ccccc1)CC(=O)Nc2c(cccc2C)C.c1ccc(cc1)C(=O)[O-]
- InChI : 1S/C21H28N2O.C7H6O2/c1-5-23(6-2,15-19-13-8-7-9-14-19)16-20(24)22-21-17(3)11-10-12-18(21)4;8-7(9)6-4-2-1-3-5-6/h7-14H,5-6,15- 16H2,1-4H3;1-5H,(H,8,9)
- Substance type: organic
- Physical state: Solid
Specific details on test material used for the study:
- Name of test material (as cited in study report): Denatonium benzoate
- IUPAC NAme : benzyl({[(2,6-dimethylphenyl)carbamoyl]methyl})diethylazanium benzoate hydrate
- Molecular formula: C21H29N2O.C7H5O2
- Molecular weight: 446.58 g/mol
- Smiles : CC[N+](CC)(Cc1ccccc1)CC(=O)Nc2c(cccc2C)C.c1ccc(cc1)C(=O)[O-]
- InChI : 1S/C21H28N2O.C7H6O2/c1-5-23(6-2,15-19-13-8-7-9-14-19)16-20(24)22-21-17(3)11-10-12-18(21)4;8-7(9)6-4-2-1-3-5-6/h7-14H,5-6,15- 16H2,1-4H3;1-5H,(H,8,9)
- Substance type: organic
- Physical state: Solid

Results and discussion

pH value
Key result
pH value:
7.2
Temp.:
31.5 °C
Concentration:
1 vol%
Remarks on result:
other: Neutral pH

Applicant's summary and conclusion

Conclusions:
pH of 1% w/v aqueous solution of the test substance Denatonium benzoate is determine to be 7.2 at 31.5°C for granular form.
Executive summary:

pH of 1% w/v aqueous solution of the test substance Denatonium benzoate is determine to be 7.2 at 31.5°C for granular form. Thus, 1% solution of Denatonium benzoate can be considered to be neutral in pH.