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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1996
Report date:
1996

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: 92/69/EEC, B1
GLP compliance:
yes
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2,4-trimethyl-4-phenyl-butane-nitrile
EC Number:
422-580-8
EC Name:
2,2,4-trimethyl-4-phenyl-butane-nitrile
Cas Number:
75490-39-0
Molecular formula:
C13 H17 N
IUPAC Name:
2,2-dimethyl-4-phenylpentanenitrile

Test animals

Species:
other: Rat (Sprague-Dawley)

Administration / exposure

Vehicle:
other: Liquid substance administered neat, as supplied.

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
1 693 mg/kg bw
95% CL:
1 437 - 1 994
Remarks on result:
other: Slope of the mortality curve: 12.13
Mortality:
Male: 2000 mg/kg bw; Number of animals: 5; Number of deaths: 3
Female: 2000 mg/kg bw; Number of animals: 5; Number of deaths: 4
Female: 1600 mg/kg bw; Number of animals: 5; Number of deaths: 2
Female: 1000 mg/kg bw; Number of animals: 5; Number of deaths: 0
Clinical signs:
other: Signs of toxicity related to dose levels: Mortality: Two females at 1600 mg/kg and three males and four females at 2000 mg/kg died during the study. Deaths occurred from within 4 hours of treatment until day 2. Clinical signs: Piloerection wa
Gross pathology:
Effects on organs:
Macroscopic examination of all decedents at 2000 mg/kg
revealed a darkened appearance of the liver.

No macroscopic abnormalities were observed in either the
decedents at 1600 mg/kg or in surviving animals.

Applicant's summary and conclusion

Interpretation of results:
harmful
Remarks:
Migrated information Criteria used for interpretation of results: EU