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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
melting point/freezing point
Type of information:
not specified
Adequacy of study:
supporting study
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data

Data source

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
4-hydroxy-7-(methylamino)naphthalene-2-sulphonic acid
EC Number:
244-924-4
EC Name:
4-hydroxy-7-(methylamino)naphthalene-2-sulphonic acid
Cas Number:
22346-43-6
Molecular formula:
C11H11NO4S
IUPAC Name:
4-hydroxy-7-(methylamino)naphthalene-2-sulfonic acid
Test material form:
solid: particulate/powder

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 360 °C
Atm. press.:
101.3 kPa

Applicant's summary and conclusion