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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Description of key information

Acute toxicity by oral route

Acute oral toxicity data are not available for methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide.

For the similar substance Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide the following data are available:

•       guinea pig, oral LD50 =       5300 mg/kg

•       rat, oral LD50 = 4800 mg/kg.

Overall, available data are conclusive but not sufficient for the classification of the substance.

Acute toxicity by inhalation route

Acute inhalation toxicity data are not available for methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide.

For the similar substance Ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide the following data is available:

•       rat, inhalation       LC50 = 1562 mg/m3.

Detailed information on the type of exposure are not available; moreover, detailed information on the duration of exposure is not available.  

Overall, available data are inconclusive for the classification of the substance.

Key value for chemical safety assessment

Additional information

Justification for classification or non-classification