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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Acute Toxicity: oral

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Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Title:
Unnamed
Year:
1991
Report date:
1991

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
yes (incl. QA statement)
Test type:
standard acute method

Test material

Constituent 1
Chemical structure
Reference substance name:
4-(tert-butyl)-N-sec-butyl-2,6-dinitroaniline
EC Number:
251-607-4
EC Name:
4-(tert-butyl)-N-sec-butyl-2,6-dinitroaniline
Cas Number:
33629-47-9
Molecular formula:
C14H21N3O4
IUPAC Name:
N-sec-butyl-4-tert-butyl-2,6-dinitroaniline
impurity 1
Chemical structure
Reference substance name:
Xylene
EC Number:
215-535-7
EC Name:
Xylene
Cas Number:
1330-20-7
Molecular formula:
C8H10
IUPAC Name:
m-xylene

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
Male and female Sprague-Dawley (SD) rats, five weeks of age.
The animals were quarantiner for 7 days prioir to test article administration.

Administration / exposure

Route of administration:
oral: gavage
Doses:
700 mg/kg
1000 mg/mkg
1200 mg/kg
1600 mg/kg
2000 mg/kg
No. of animals per sex per dose:
5
Control animals:
yes

Results and discussion

Effect levelsopen allclose all
Key result
Sex:
male
Dose descriptor:
LD50
Effect level:
ca. 1 169.5 mg/kg bw
95% CL:
>= 914.4 - <= 1 495.9
Key result
Sex:
female
Dose descriptor:
LD50
Effect level:
>= 1 049 mg/kg bw
95% CL:
>= 818.1 - <= 1 345.1

Applicant's summary and conclusion

Conclusions:
The LD50 was calculated to be 1169.5 mg/kg with a 95% confidence level of 914.4 to 1495.9 for the male rats and 1049.0 mg/kg with 95% confidence level of 818.1 to 1345.1 for the females.