2,4-bis[N'-(4-methylphenyl)ureido]toluene

Density

Administrative data

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

September 18, 1992 - October 2, 1992

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1992

Report date:

1992

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Version / remarks:

(1981)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Version / remarks:

(1984)

Deviations:

no

GLP compliance:

yes

Type of method:

air comparison pycnometer (for solids)

Test material

Test material information

Constituent 1

Reference substance name:

2,4-bis[N'-(4-methylphenyl)ureido]toluene

EC Number:

411-790-5

EC Name:

2,4-bis[N'-(4-methylphenyl)ureido]toluene

Cas Number:

54390-87-3

Molecular formula:

C23H24N4O2, C24H34N4O2

IUPAC Name:

3-(2-methyl-3-{[(4-methylphenyl)carbamoyl]amino}phenyl)-1-(4-methylphenyl)urea; 3-(2-methyl-5-{[(4-methylphenyl)carbamoyl]amino}phenyl)-1-(4-methylphenyl)urea; 3-{2-methyl-3-[(octylcarbamoyl)amino]phenyl}-1-(4-methylphenyl)urea

Test material form:

solid: particulate/powder

Details on test material:

- Name of test material (as cited in study report): KY-MA
- Lot/batch No.: 4HT059M
- Expiration date of the lot/batch: August 5, 1994
- Physical state: Light yellow solid
- Storage condition of test material: At room temperature in the dark

Dynamic viscosity of test material:

not applicable (substance is a solid)

Results and discussion

Density

Density 1

Key result

Type:

density

Density:

1.22 g/cm³

Temp.:

20 °C

Density 2

Key result

Type:

relative density

Density:

1.22

Temp.:

20 °C

Remarks on result:

other: D 20 /4

Any other information on results incl. tables

Results of the calibration of Va

- Calibration volume (Vcyl): 71.13 cm^3

- Gas: helium 

Experiment number	P1 [psig]	P2 [psig]	P3 [psig]	P4 [psig]	Va [cm^3]
1	19.529	12.532	19.679	9.688	86.60
2	19.578	12.568	19.828	9.765	86.48
3	19.533	12.541	19.919	9.811	86.43
				Mean:	86.50

Results of the calibration of the small sample cell

- Added volume (Va): 86.50 cm^3

- Gas: helium

Experiment number	P5 [psig]	P6 [psig]	Vc [cm^3]
1	19.391	5.417	33.53
2	19.775	5.529	33.57
3	19.710	5.512	33.58
		Mean	33.56

Results of measurement #1

- Sample mass: 4.4189 g

- Added volume (Va): 86.50 cm^3

- Cell holder volume (Vc): 33.56 cm^3

- Gas: helium 

Experiment number	P7 [psig]	P8 [psig]	Vp [cm^3]	Density [g/cm^3]
1	19.653	5.065	3.527	1.253 (*)
2	19.633	5.051	3.598	1.228
3	19.711	5.068	3.622	1.220
			Mean	1.224

(*) Experiment 1 was not used for evaluation (deviation due to stabilisation of the test sample)

Results of measurement #2

- Sample mass: 5.2690 g

- Added volume (Va): 86.50 cm^3

- Cell holder volume (Vc): 33.56 cm^3

- Gas: helium 

Experiment number	P7 [psig]	P8 [psig]	Vp [cm^3]	Density [g/cm^3]
1	19.727	4.997	4.216	1.250 (*)
2	19.755	4.993	4.301	1.225
3	19.664	4.966	4.334	1.216
			Mean	1.221

(*) Experiment 1 was not used for evaluation (deviation due to stabilisation of the test sample)

 

Applicant's summary and conclusion

Conclusions:

The relative density D20/4 of the substance was determined to be 1.22.

Executive summary:

A gas comparison pycnometer was used for the determination of the density and relative density of the substance in accordance with OECD 109 (1981), EU Method A.3 (1984) and GLP. The density of the test substance at 20ºC was 1.22 g/cm3 (relative density is 1.22).