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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

The substance shows an acute oral toxicity on rat.

Key value for chemical safety assessment

Acute toxicity: via oral route

Link to relevant study records
Reference
Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
A reliable secondary source, summaring 2-mercaptobenzamidazole, was used. However, the primary sources were not revisited in order to verify their contents; for this reason reliability score 2 was used. The used secondary source has been updated on 2012; therefore it covers the most updated literature on the substance.
Qualifier:
no guideline available
Principles of method if other than guideline:
It is not specified
GLP compliance:
not specified
Test type:
other: no data
Species:
rat
Strain:
not specified
Sex:
not specified
Route of administration:
oral: unspecified
Vehicle:
not specified
Sex:
not specified
Dose descriptor:
LD50
Effect level:
ca. 300 mg/kg bw
Based on:
test mat.
Interpretation of results:
Toxicity Category IV
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
According to Directive 67/548/EEC and to Regulation (EC) n. 1272/2008, the substance should be classified for oral acute toxicity.
Endpoint conclusion
Endpoint conclusion:
adverse effect observed
Dose descriptor:
LD50
Value:
300 mg/kg bw

Additional information

The substance shows a acute oral toxicity on rat. For this reason according to Directive 67/548/EEC and to Regulation (EC) n. 1272/2008, it should be classified for oral acute toxicity


Justification for selection of acute toxicity – oral endpoint
The data on rat is more reliable because this specie is preferred for this endpoint.

Justification for classification or non-classification

According to Directive 67/548/EEC and to Regulation (EC) n. 1272/2008, the substance should be classified for oral acute toxicity as Acute Tox 4 H302