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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Carcinogenicity

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Administrative data

Description of key information

Weight of evidence: Read-across approach from an analogue. 
The analogue CAS No. 128-37-0 (BHT) which shares the same functional group (alkylphenol) with the two main constituents of the substance Reaction mass of 2,6-di-tert-butylphenol and 2,4,6-tri-tert-butylphenol, also has comparable values for the relevant molecular properties. Therefore, the results obtained with the substance CAS No. 128 -37-0 can be used for the read-across approach.
Based on experimental data, the read-across approach is applied and the substance is considered to be non-carcinogenic.

Key value for chemical safety assessment

Carcinogenicity: via oral route

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed
Quality of whole database:
Weight of evidence: Read-across approach from an analogue.

Carcinogenicity: via inhalation route

Endpoint conclusion
Endpoint conclusion:
no study available

Carcinogenicity: via dermal route

Endpoint conclusion
Endpoint conclusion:
no study available

Justification for classification or non-classification

Based on the available data, the substance is not classified as carcinogenic.

Additional information

Weight of evidence: Read-across approach from an analogue.

The analogue CAS No. 128-37-0 (BHT) which shares the same functional group (alkylphenol) with the two main constituents of the substance Reaction mass of 2,6-di-tert-butylphenol and 2,4,6-tri-tert-butylphenol, also has comparable values for the relevant molecular properties. Therefore, the results obtained with the substance CAS No. 128 -37-0 can be used for the read-across approach.

Based on experimental data, the read-across approach is applied and the substance is considered to be non-carcinogenic.


Justification for selection of carcinogenicity via oral route endpoint:
Weight of evidence: Read-across approach from an analogue.

The analogue CAS No. 128-37-0 (BHT) which shares the same functional group (alkylphenol) with the two main constituents of the substance Reaction mass of 2,6-di-tert-butylphenol and 2,4,6-tri-tert-butylphenol, also has comparable values for the relevant molecular properties. Therefore, the results obtained with the substance CAS No. 128 -37-0 can be used for the read-across approach.

Based on experimental data, the read-across approach is applied and the substance is considered to be non-carcinogenic.