Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment
Justification for type of information:
Weight of evidence from several studies. See melting point, particle size distibution and characterisation for physical state. Colour is assessed visually in characterisation and supported by multiple physical chemistry studies.

Data source

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Weight of evidence from several studies. See melting point, particle size distibution and characterisation for physical state. Colour is assessed visually in characterisation and supported by multiple physical chemistry studies.

Test material

Constituent 1
Chemical structure
Reference substance name:
Methyl 1-methyl-4-[(methylphenylhydrazono)methyl]pyridinium sulphate
EC Number:
269-503-2
EC Name:
Methyl 1-methyl-4-[(methylphenylhydrazono)methyl]pyridinium sulphate
Cas Number:
68259-00-7
Molecular formula:
C14H16N3.CH3O4S
IUPAC Name:
methyl 1-methyl-4-[(methylphenylhydrazono)methyl]pyridinium sulphate
Test material form:
solid: particulate/powder
Details on test material:
See study reports for batch and purity information

Results and discussion

Physical state at 20°C and 1013 hPa:
solid
Form / colour / odour
Form:
solid: particulate/powder
Colour:
Yellow
Substance type:
organic

Applicant's summary and conclusion

Conclusions:
The substance is manufactured as a powdered solid and is described as Yellow in colour.
Executive summary:

The substance is manufactured as a powdered solid and is described as Yellow in colour.