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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Valid certificate of analysis, reliability 1 for this specific endpoint

Data source

Reference
Reference Type:
other company data
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Principles of method if other than guideline:
Visual inspection and smell test

Test material

Constituent 1
Chemical structure
Reference substance name:
Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(4-chloro-2,5-dimethoxyphenyl and 2,4-xylyl) derivs.
EC Number:
290-824-9
EC Name:
Butanamide, 2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-, N,N'-bis(4-chloro-2,5-dimethoxyphenyl and 2,4-xylyl) derivs.
Cas Number:
90268-24-9
Molecular formula:
C36H34Cl2N6O4 // C36H33Cl3N6O6 // C36H32Cl4N6O8
IUPAC Name:
2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(2,4-dimethylphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-N-(2,4-dimethylphenyl)-3-oxobutanamide; N-(4-chloro-2,5-dimethoxyphenyl)-2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(2,4-dimethylphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-3-oxobutanamide; N-(4-chloro-2,5-dimethoxyphenyl)-2-[(1E)-2-{3,3'-dichloro-4'-[(1E)-2-{1-[(4-chloro-2,5-dimethoxyphenyl)carbamoyl]-2-oxopropyl}diazen-1-yl]-[1,1'-biphenyl]-4-yl}diazen-1-yl]-3-oxobutanamide
Test material form:
solid: nanoform

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Form:
solid: nanoform
Colour:
yellow
Odour:
other: non-specific
Substance type:
organic

Applicant's summary and conclusion

Conclusions:
The test substance is a yellow powder.
Executive summary:

The test substance is a yellow powder.