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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Aug - Sep 1983
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1983
Report date:
1983

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:
Sodium bis[4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-3-hydroxy-N,N-dimethylbenzene-1-sulphonamidato(2-)]chromate(1-)
EC Number:
278-137-2
EC Name:
Sodium bis[4-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-3-hydroxy-N,N-dimethylbenzene-1-sulphonamidato(2-)]chromate(1-)
Cas Number:
75214-69-6
Molecular formula:
C36H34CrN10NaO8S2
IUPAC Name:
hydroxylamine
Test material form:
solid: granular

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Winkelmann, Borchen, Germany
- Age at study initiation: 9 (male) - 14 (female) weeks
- Weight at study initiation: 166-181 g (male) and 150-169 g (female)
- Females: nulliparous and not pregnant
- Fasting period before study: 16 h
- Housing: Makrolon type 3 cage with softwood bedding
- Diet (e.g. ad libitum): Altromin®1324 Pellets ad lib. 4 h after dosing
- Water (e.g. ad libitum): ad lib.
- Acclimation period: at least 4 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 - 24
- Humidity (%): 40 - 60
- Air changes (per hr): 10
- Photoperiod (hrs dark / hrs light): 12/12 h

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Details on oral exposure:
Application volume: 20 mL/kg bw
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: four times during day 1, twice per day during days 2-15 (once per day during weekend)
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, behaviour

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 occured
Clinical signs:
No symptoms
Body weight:
No effect on body weight gain
Gross pathology:
No macroscopic findings

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The LD50 oral was determined to be >5000 mg/kg in female/male rats. The substance does not meet the classification criteria according to the CLP Regulation.