Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-02-04 – 2017-02-04
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report Date:
2017

Materials and methods

Test guideline
Qualifier:
according to
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
Name:
Unnamed
Type:
Constituent
Test material form:
solid
Specific details on test material used for the study:
- Name of test material (as cited in study report): 3,5-diaminobenzoic acid
- Molecular formula: C7 H8 N2 O2
- Molecular weight: 152.1522 g/mol
- Smiles notation: O=C(O)c1cc(N)cc(N)c1
- InChl : 1S/C7H8N2O2/c8-5-1-4(7(10)11)2-6(9)3-5/h1-3H,8-9H2,(H,10,11)
- Substance type: Organic
- Physical state: solid

Results and discussion

pH value
pH value:
3.97
Temp.:
27.4 °C
Concentration:
1 other: %w/v

Applicant's summary and conclusion

Conclusions:
The pH of 1% w/v dispersion of the test item 3,5-diaminobenzoic acid (CAS No535-87-5)was 3.97 at 27.4 °C.
Executive summary:

The pH determination of test item 3,5-diaminobenzoic acid (CAS No 535-87-5) was done following OECD guideline 122. pH of 1% w/v dispersion was measured with the help of pH meter and it was observed to be 3.97 at 27.4 °C. Based on the value, 3,5-diaminobenzoic acid was considered to be acidic in nature.