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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Type of information:
experimental study
Adequacy of study:
key study
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Test performed according to GLP

Data source

Reference Type:
study report
Report date:

Materials and methods

Test guideline
according to guideline
other: United Nations (UN), UN no. ST/SG/AC.10/11/Rev.5: Recommendations on the Transport of Dangerous Goods, Part III: Classification Procedures, Test Methods and Criteria Relating to Class 2, Class 3, Class 4, Division 5.1, Class 8 and Class 9, Test N.4
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
1,1,2,3-tetramethyl-1H-benzo[e]indol-3-ium 4-methylbenzene-1-sulfonate
Cas Number:
Molecular formula:
1,1,2,3-tetramethyl-1H-benzo[e]indol-3-ium 4-methylbenzene-1-sulfonate
Test material form:
solid: particulate/powder
migrated information: powder
Details on test material:
Identification V173520
Appearance White powder (determined by WIL Research Europe)
Purity/Composition Not indicated
Test substance storage At room temperature
Stable under storage conditions until 20 April 2017 (expiry date)
Stability at higher temperatures Yes, maximum temperature: 50°C(drying), maximum duration: 24 h
Molecular formula C23H25NO3S
Molecular weight 395.53

Results and discussion

Any other information on results incl. tables

A negative result was obtained. No spontaneous ignition occurred and no exothermic effect of the test substance was observed. It demonstrated that the test substance is “not a self-heating substance”. According to the UN guideline, no further testing is required.


After the experiment, the test substance had turned into a purple grey residue. It indicated that the test substance had decomposed and/or reacted during the experiment.

Applicant's summary and conclusion

Self-heating of V173520 was determined in accordance with UN Test N.4 “Test Method for Self-heating Substances”.

From the negative result obtained at 140°C using a 10 cm sample cube, it was concluded that V173520 is not a self-heating substance.