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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Appearance:

On the basis of physical observation and using the sense of smell, 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was observed to be a reddish yellow powder.

Melting point:

Based on prediction done using MPBPVP v1.43,the melting point of 2-[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was  estimated to be 244.65 Deg C.

Boiling Point:

Based on prediction done using MPBPVP v1.43,the Boiling point of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was  estimated to be 568.62 Deg C.

Density:

Based on prediction done using ACD/I-Lab 2.0, the density of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was estimated to be 1.38 g/cm3 at temperature 20 Deg C.

Particle size distribution:

The particle size distribution of 2-[(E)-2-(4-chloro-2-nitrophenyl)diazen-1-yl]-N-(4-ethoxyphenyl)-3-oxobutanamide was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.

Vapour pressure:

The estimated vapour pressure of 2-[(E)-2-(4-chloro-2-nitrophenyl)diazen-1-yl]-N-(4-ethoxyphenyl)-3-oxobutanamide at temperayure 25 Deg C was 2.67E-10 Pa.

Partition coefficient:

Based on the available data from modeling databases using the KOWWIN V1.68 programme, octanol water partition coefficient (log Pow) value of the test substance 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was estimated to be 4.608. Thus, on the basis of logPow value, chemical 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl) diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide can be considered to be hydrophobic in nature.

Water solubility:

The estimated water solubility of 2-[(E)-2-(4-chloro-2-nitrophenyl)diazen-1-yl]-N-(4-ethoxyphenyl)-3-oxobutanamide at 25 deg C was  0.1227 mg/l.

Surface tension:

Based on the data from ACD labs, surface tension for 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was predicted to be 0.0522 N/m.

Flash point:

Flash point of chemical 2-[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide is estimated to be 305 Deg C.

Auto flammability:

2-[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide is not auto-flammable.

Flammability:

2-[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was considered non-flammable for chemical safety assessment.

Explosiveness:

The study does not need to be conducted because the substance contains chemical groups associated with explosive properties which include oxygen, but the calculated oxygen balance is less than - 200.

Oxidizing properties:

The study does not need to be conducted because the substance is a solid.

Additional information

Appearance:

On the basis of physical observation and using the sense of smell, 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was observed to be a reddish yellow powder.

Melting point:

Based on the prediction done using the EPI Suite MPVPBP V1.43,the melting point of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was predicted.

The melting point of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was estimated to be 244.65˚C.

Boiling Point:

Based on the prediction done using the EPI Suite MPVPBP V1.43,the Boiling point of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was predicted.

The boiling point of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was estimated to be 568.62˚C.

Density:

Based on prediction done using ACD/I-Lab 2.0, the density of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was estimated to be 1.38 g/cm3 at temperature 20 Deg C.

Particle size distribution:

The particle size distribution of 2-[(E)-2-(4-chloro-2-nitrophenyl)diazen-1-yl]-N-(4-ethoxyphenyl)-3-oxobutanamide was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.

Vapour pressure:

Modified Grain method was used to estimate the vapour pressure of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide using MPBPVP v1.43 of EPI SUITE.

The estimated vapour pressure of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide at temperature 25 Deg C was 2.67E-10 Pa.

Partition coefficient:

Based on the available data in a key study from modeling databases using the KOWWIN V1.68 programme, octanol water partition coefficient (log Pow) value of the test substance 2-[(E)-2-(4-chloro-2-nitrophenyl)diazen-1-yl]-N-(4-ethoxyphenyl)-3-oxobutanamide was estimated to be 4.608.

In a supporting study from modelling database, the partition coefficient (log Pow) value of the substance 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was estimated to be 4.953 ± 0.817 at 25°C.

Thus, based on the available information, the logPow valueof the test substance 2-[(E)-2-(4-chloro-2-nitrophenyl)diazen-1-yl]-N-(4-ethoxyphenyl)-3-oxobutanamide ranges from 4.6 to 4.9, respectively. On the basis of this value, chemical 2-[(E)-2-(4-chloro-2-nitrophenyl)diazen-1-yl]-N-(4-ethoxyphenyl)-3-oxobutanamide can be considered to be hydrophobic in nature.

Water solubility:

WSKOW v1.42 was used to estimate the water solubility of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide.

The estimated water solubility of 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide at 25 deg C was 0.1227 mg/l.

Based on the estimated value, 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was slightly soluble in water.

Surface tension:

Based on the data from ACD labs, surface tension for 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was predicted to be 0.0522 N/m.

Flash point:

Flash point of chemical 2-[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide is estimated to be 305 Deg C.

Auto flammability:

2-[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide did not catch fire on being exposed to air at room temperature of 27°C pressure of 966 hPa. This indicates that 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide is not auto-flammable.

Flammability:

2-[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide does not indicate any ignition when the flame of bunsen burner having temperature of approximately 950°C is brought in contact with it. Thus it can be concluded that 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide is not flammable at high temperature. However since such high temperatures are not found under normal circumstances of transportation and use, thus 2 -[(E)-2 -(4 -chloro-2 -nitrophenyl)diazen-1 -yl]-N-(4 -ethoxyphenyl)-3 -oxobutanamide was considered non-flammable for chemical safety assessment.

Explosiveness:

The study does not need to be conducted because the substance contains chemical groups associated with explosive properties which include oxygen, but the calculated oxygen balance is less than - 200.

Oxidizing properties:

The study does not need to be conducted because the substance is a solid.