Registration Dossier

Administrative data

Endpoint:
pH
Type of information:
experimental study
Adequacy of study:
key study
Study period:
21-07-2018 – 21-07-2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: OECD 122
Principles of method if other than guideline:
The pH determination of test item [4-(4-phenoxybenzoyl)phenyl](4-phenoxyphenyl)methanone (CAS No. 54299-17-1 ) was done as per the test guideline OECD 122. The mean pH of the test dispersion was determined with the help of digital pH meter.
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid
Details on test material:
- Name of test material (IUPAC name): 1,4-phenylene bis[(4-phenoxyphenyl)-methanone]
- Molecular formula: C32H22O4
- Molecular weight: 470.5218 g/mol
- Smiles : c1ccc(cc1)Oc2ccc(cc2)C(=O)c3ccc(cc3)C(=O)c4ccc(cc4)Oc5ccccc5
- InChI : 1S/C32H22O4/c33-31(25-15-19-29(20-16-25)35-27-7-3-1-4-8-27)23-11-13-24(14-12-23)32(34)26-17-21-30(22-18-26)36-28-9-5-2-6-10-28/h1-22H
- Substance Type: Organic
- Physical State: Solid
- Batch No./ Lot no.: E18/11
- Physical Appearance: White solid powder
- Purity: > 99 % by HPLC
- Stability: Stable in recommended storage conditions
- Storage Conditions: Ambient Temp (23 to 27 °C) √ (Store in a cool place. Keep containers tightly closed in a dry and well ventilated place)
Specific details on test material used for the study:
- Name of test material (IUPAC name): 1,4-phenylene bis[(4-phenoxyphenyl)-methanone]
- Molecular formula: C32H22O4
- Molecular weight: 470.5218 g/mol
- Smiles : c1ccc(cc1)Oc2ccc(cc2)C(=O)c3ccc(cc3)C(=O)c4ccc(cc4)Oc5ccccc5
- InChI : 1S/C32H22O4/c33-31(25-15-19-29(20-16-25)35-27-7-3-1-4-8-27)23-11-13-24(14-12-23)32(34)26-17-21-30(22-18-26)36-28-9-5-2-6-10-28/h1-22H
- Substance Type: Organic
- Physical State: Solid
- Batch No./ Lot no.: E18/11
- Physical Appearance: White solid powder
- Purity: > 99 % by HPLC
- Stability: Stable in recommended storage conditions
- Storage Conditions: Ambient Temp (23 to 27 °C) √ (Store in a cool place. Keep containers tightly closed in a dry and well ventilated place)

Results and discussion

pH value
Key result
pH value:
5.75
Temp.:
25 °C
Concentration:
1 vol%
Remarks on result:
other: Acidic

Any other information on results incl. tables

 Method Details     Observations  
Remarks if, any
 Guideline  OECD 122                   
 Method  Digital pH meter  
 Principle of Method

 The mean pH of an aqueous

solution or dispersion in water was

determined with a pH

measurement interface equipped

with an appropriate electrode

system.

 

Temperature of 1% w/v

test dispersion

 

25°C 

 mean pH (RESULT)

 

 5.75

 Inference

 1. Acidic

2. Basic

3. Neutral

 Acidic

Applicant's summary and conclusion

Conclusions:
The pH determination of test item [4-(4-phenoxybenzoyl)phenyl](4-phenoxyphenyl)methanone (CAS No 54299-17-1) 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 5.75 at 25 °C.
Executive summary:

The pH determination of test item [4-(4-phenoxybenzoyl)phenyl](4-phenoxyphenyl)methanone (CAS No 54299-17-1) 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 5.75 at 25 °C.