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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


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Administrative data

Link to relevant study record(s)

relative density
Type of information:
other: Literature
Adequacy of study:
key study
Study period:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Reason / purpose for cross-reference:
other: PubCHem publication
no guideline available
Principles of method if other than guideline:
Data from NTP Publication (1992), no method specified
GLP compliance:
not specified
Type of method:
other: Data from NTP publication (1992), no method specified.
Key result
relative density
1.33 g/cm³
77 °F
Remarks on result:
other: value from NTP (1992)
No fully GLP or guideline study is available, however peer reviewed publication states the relative density of dapsone is 1.33 at 77oF.

Description of key information

Two values are available from Chemicalbook :
0.8201 g/cm³ under 20 degree Celcius
1.361 g/cm³ (no temperature conditions specified)

Key value for chemical safety assessment

Relative density at 20C:

Additional information