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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Link to relevant study record(s)

Description of key information

No study available. The relevant physico-chemical data are assessed in regard of toxicokinetics. (Assessment of the toxicokinetic behaviour of the substance to the extent that can be derived from the relevant available information, EC 2006/1907, Annex VII, 8.8.1)

Key value for chemical safety assessment

Bioaccumulation potential:
low bioaccumulation potential
Absorption rate - oral (%):
Absorption rate - dermal (%):
Absorption rate - inhalation (%):

Additional information

There is one study available for the structural analogue 1H-Benzotriazole on the metabolism. However, this study does not give sufficient information for this endpoint and is regarded as supporting study.

Physicochemical parameters used for toxicokinetic Endpoint summary:


Value used for CSR

Molecular weight

141.11 g/mol

Melting point

Decomposition at 245 °C

Boiling point

Decomposition at 245 °C


1.42 g/cm3(at 15 °C)

Vapour pressure

0.001 Pa (at 20 °C)

Partition coefficient n-octanol/water (log POW)

0.480 (at 25 °C)

Water solubility

> 10 g/L (at 25 °C) / 49.9 % w/w


ca. 12


8.57 (at 25 °C)

Particle size

The substance is manufactured and marketed as aqueous solution


Based on these parameters, the bioaccumulation potential is judged as low (log POW< 4).

The pure substance is a solid with a low vapour pressure. It is manufactured and marketed as an aqueous solution. Based on this information the inhalative absorption is assumed to be 10 %. For dermal and oral Absorption rate 100 % are assumed by default.