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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Boiling point

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Administrative data

Link to relevant study record(s)

Description of key information


Key value for chemical safety assessment

Additional information

According to Annex VII of the REACH Regulation EC n. 1907/2006, Column 2, the study does not need to be conducted for solids which either melt above 300 °C or decompose before boiling at ambient pressure (e.g. auto-oxidation, rearrangement, degradation, decomposition, etc.).

Decomposition of the test item beginning at 256 °C and no boiling was observed.

The estimated value of boiling point is 811.20 Adapted Stein & Brown method), MPBPVP v1.43, US EPA. [2016]. Estimation Programs Interface Suite™ for Microsoft® Windows, v 4.11]. United States Environmental Protection Agency, Washington, DC, USA. Smiles used: [Na+].Nc1cc(N)c(cc1S(=O)([O-])=O)/N=N/c2cc(ccc2O)N(=O)=O