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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Link to relevant study record(s)

Type of information:
experimental study
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Data from reliable source. Although no detailed test report is available, all tests from the Japanese Authorities are performed according to OECD guidelines and GLP.
according to guideline
OECD Guideline 111 (Hydrolysis as a Function of pH)
GLP compliance:
Specific details on test material used for the study:
- Name of test material (as cited in study report): D & C Red No. 7
Transformation products:
not specified
Key result
Remarks on result:
other: not hydrolysed at pH 4, 7 and 9
Details on results:
Not hydrolysed at pH 4, 7 and 9

Description of key information

According to structural properties, hydrolysis is not expected/probable. The substance was determined to be hydrolytically stable at pH 4, 7 and 9.

Key value for chemical safety assessment

Additional information

In a guideline study conducted in compliance with OECD 111 the hydrolysis of the substance as a function of pH was tested. No hydrolysis at pH 4, 7 and 9 was determined (MITI, Japan 1994).