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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
1981
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1981
Report date:
1981

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
no
Remarks:
prior to GLP implementation
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Amines, C10-14-branched and linear alkyl, bis[2,4-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)]chromate(1-) (1:1)
EC Number:
284-628-2
EC Name:
Amines, C10-14-branched and linear alkyl, bis[2,4-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)]chromate(1-) (1:1)
Cas Number:
84961-40-0
Molecular formula:
C32H22CrN10O8.C10-14H21-29NH2
IUPAC Name:
Amines, C10-14-branched and linear alkyl, bis[2,4-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-onato(2-)]chromate(1-) (1:1)
Test material form:
solid

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Fasting period before study: food depreviation 15 - 20 hours before test substance administration.
- Diet: standardized animal laboratory diet


Administration / exposure

Route of administration:
oral: gavage
Vehicle:
olive oil
Details on oral exposure:
Form of administration: suspension
Concentrations used: 16.5, 24.2, 35.6 % (w/v)
Administration volume: 5, 7.3, 10.8 mL/kg
Doses:
825, 1210, 1780, 2610, 3830 mg/kg bw
No. of animals per sex per dose:
5
Details on study design:
- Duration of observation period following administration: 14 days
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight

Results and discussion

Effect levels
Key result
Sex:
male/female
Dose descriptor:
LD50
Effect level:
ca. 1 400 mg/kg bw
Mortality:
Males: 825 mg/kg: no deaths; 1210 mg/kg: 3/5 after 14 days; 1780 mg/kg: 1/5 after 14 days; 2610 mg/kg: 4/5 after 14 days; 3830 mg/kg: 5/5 after 14 days
Females: 825 mg/kg: no deaths; 1210 mg/kg: 3/5 after 14 days; 1780 mg/kg: 4/5 after 14 days; 2610 and 3830 mg/kg: 5/5 after 14 days
Clinical signs:
other: Dyspnea, apathy, staggering, feces and urine orange-coloured, diarrhea, poor general state
Gross pathology:
Died animals:
heart: acute dilatation of the atrium; acute congestive hyperemia
organs/fat tissues/musculature: substance-coloured

Sacrificed animals:
organs: nothing abnormal detected

Applicant's summary and conclusion

Interpretation of results:
Category 4 based on GHS criteria