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

Flammability

Administrative data

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

September 16, 1992 - September 24, 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

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

1984 and proposed updated version (October 1989)

Deviations:

no

GLP compliance:

yes

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

Results and discussion

Flammable solids

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

other: The substace could be ignited but it did not propagate combustion by burning with flame along 200 mm of the powder train in less than 2 minutes or 4 minutes.

Any other information on results incl. tables

The substance could be ignited by a flame. The burning time over a distance of 100 mm was 305 seconds. The calculated burning time over a distance of 200 mm is 610 seconds (approx. 10 minutes). As this was significantly longer than 4 minutes, no further tests were performed.

Applicant's summary and conclusion

Interpretation of results:

other: not classified based on GHS or CLP criteria

Conclusions:

The substance is not a flammable solid.

Executive summary:

The preliminary test according to EC A.10 was performed and the test substance was found to be not "highly flammable" according to the criteria of the directive.

Since no propagation of combustion along 200 mm of the powder train within 2 minutes was seen in the EC A.10 test, EC A.10 study is similar to UN Test N.1 for this substance. The substance is not a flammable solid.