2-bromo-5-hydroxy-4-methoxybenzaldehyde

Density

Administrative data

Endpoint:

relative density

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1998-02-20 to 1998-04-15

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1998

Report date:

1998

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 109 (Density of Liquids and Solids)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.3 (Relative Density)

Deviations:

no

Principles of method if other than guideline:

not applicable

GLP compliance:

yes (incl. QA statement)

Remarks:

Certificate from the Swiss GLP Monitoring Authorities.

Type of method:

pycnometer method

Test material

Test material information

Constituent 1

Reference substance name:

-

EC Number:

426-540-0

EC Name:

-

Cas Number:

2973-59-3

Molecular formula:

C8 H7 Br O3

IUPAC Name:

2-bromo-5-hydroxy-4-methoxybenzaldehyde

Test material form:

solid

Specific details on test material used for the study:

- Batch: 00265786
- Purity: 91.3% (HPLC purity)
- Expiration date: July 1, 1998 (retest date)
- Storage: at room temperature at about 20°C

Results and discussion

Density

Density 1

Type:

density

Density:

1.8 g/cm³

Temp.:

20.6 °C

Density 2

Key result

Type:

relative density

Density:

1.8

Temp.:

20.4 °C

Any other information on results incl. tables

Table 1. Determination of the density of the test substance T002019 at 20.6 deg C +-0.1 deg C

Sample no.	Sample weight (g)	Measurement	Sample p1(psi)	Sample p2(psi)	V sample (cm³)	Density    (g/cm³)
1	28.298	1	15.837	5.208	15.787	1.793
1	28.298	2	15.958	5.248	15.795	1.792	1.792 ^A
1	28.298	3	16.113	5.299	15.796	1.791
2	29.030	1	16.048	5.286	16.128	1.800
2	29.030	2	16.191	5.335	16.202	1.792	1.797^A
2	29.030	3	16.133	5.314	16.128	1.800
Mean							1.795

A. The average of three measurements.

Applicant's summary and conclusion

Conclusions:

In conclusion, the relative density of the test substance was determined to be 1.795, while density was determined to be 1.795 g/cm3 at 20.6°C ± 0.1°C.