N-[4-[(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthryl)amino]phenyl]acetamide

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 test result performed using standard OECD test guidelines

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2019

Report date:

2019

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 122 (Determination of pH, Acidity and Alkalinity)

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

N-[4-[(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthryl)amino]phenyl]acetamide

EC Number:

267-636-0

EC Name:

N-[4-[(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthryl)amino]phenyl]acetamide

Cas Number:

67905-17-3

Molecular formula:

C22H16N2O4

IUPAC Name:

N-[4-[(9,10-dihydro-4-hydroxy-9,10-dioxo-1-anthryl)amino]phenyl]acetamide

Test material form:

solid: particulate/powder

Details on test material:

- Name of the test material: N-{4-[(4-hydroxy-9,10-dioxo-9,10-dihydroanthracen-1-yl)amino]phenyl}acetamide
- Common name: Solvent blue 122
- Molecular formula: C22H16N2O4
- Molecular weight: 372.378 g/mol
- SMILES: O=C(Nc1ccc(Nc2c3c(c(O)cc2)C(=O)c2c(cccc2)C3=O)cc1)C
- InChI: 1S/C22H16N2O4/c1-12(25)23-13-6-8-14(9-7-13)24-17-10-11-18(26)20-19(17)21(27)15-4-2-3-5-16(15)22(20)28/h2-11,24,26H,1H3,(H,23,25)
- Substance type: Organic
- Physical state: Solid
- Physical appearance (color): Black powder solid
- Recommended Storage conditions: 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:

6.54

Temp.:

22.1 °C

Concentration:

1 vol%

Any other information on results incl. tables

Observation Table & Result :

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		22.1°C
Mean pH (RESULT)		6.54
Inference	1. Acidic 2. Basic 3. Neutral	Acidic

Applicant's summary and conclusion

Conclusions:

The pH determination of test chemical was done as per the test guideline OECD 122. The mean pH of the 1% w/v test dispersion was determined with the help of digital pH meter. The mean pH was determined to be 6.54 at 22.1°C.

Executive summary:

The pH of test chemical was determined. The study was performed in accordance with OECD Guideline 122 (Determination of pH, Acidity and Alkalinity). The mean pH of the 1% w/v test dispersion was determined with the help of digital pH meter. The mean pH was determined to be 6.54 at 22.1°C. Thus, test chemical is considered to be acidic in nature.