Methanone, 1,1'-(1,4-phenylene)bis[1-(4-phenoxyphenyl)-

pH

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

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

Test material information

Constituent 1

Reference substance name:

[4-(4-phenoxybenzoyl)phenyl](4-phenoxyphenyl)methanone

EC Number:

620-097-9

Cas Number:

54299-17-1

Molecular formula:

C32H22O4

IUPAC Name:

[4-(4-phenoxybenzoyl)phenyl](4-phenoxyphenyl)methanone

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.