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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1980
Report date:
1980

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
yes
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
p-[(5-cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxo-3-pyridyl)azo]-N-(2-ethylhexyl)benzamide
EC Number:
250-205-6
EC Name:
p-[(5-cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxo-3-pyridyl)azo]-N-(2-ethylhexyl)benzamide
Cas Number:
30449-81-1
Molecular formula:
C23H29N5O3
IUPAC Name:
p-[(5-cyano-1,6-dihydro-2-hydroxy-1,4-dimethyl-6-oxo-3-pyridyl)azo]-N-(2-ethylhexyl)benzamide
Test material form:
liquid

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Hagemann, Germany
- Fasting period before study: 15 - 20 h prior to test start
- Diet (e.g. ad libitum): Herilan, ad libitum
- Water (e.g. ad libitum): ad libitum

IN-LIFE DATES: From: 31 Oct 1979 To: 13 Nov 1979

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Details on oral exposure:
single dose received by gavage
emulsion prepared with aqua dest.
applied volume: 10 mL/kg
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
Observation period: 14 d after test substance administration
Statistics:
Determination of LD50: statistically if possible

Results and discussion

Effect levels
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Remarks on result:
not determinable due to absence of adverse toxic effects
Mortality:
No mortality observed
Clinical signs:
other: None
Gross pathology:
Organs w/o any findings
Other findings:
None

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The LD50 (oral, gavage) in male and female rats was determined >5000 mg/kg bw. The substance is not classifiable according to CLP criteria.