Registration Dossier

Diss Factsheets

Toxicological information

Acute Toxicity: oral

Currently viewing:

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
other: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Study period:
From December 21 to February 02, 1994
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
The test was conducted by means of Read Across approach. The reliability of the source study report is 2. Further information was attached at section 13

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1994
Report date:
1994

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
not specified
Test type:
acute toxic class method

Test material

Constituent 1
Reference substance name:
Similar Substance 01 - RY145
IUPAC Name:
Similar Substance 01 - RY145
Test material form:
solid: particulate/powder
Details on test material:
- Common name: Reactive Red 195
- Batch: R-11
- Purity: 76.1%
- Quantity: 25 g
- Main dye: 62.8 %, partially hydrolixed dye A 13 %, partially hydrolized dye B 0.7%

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Supplier: Velaz Praha
- Weight: 150 g
- Health status: quality certification, checked frormparasite and patogen microrganisms, viruses and fungi- Housing: plastic cages in polypropilene T4 ( Velaz Praha), ventilated and bedding with pure light wood shavings
- Selection: 5 animals pro cage by gender- Identification: by number on cages and on tail
- Diet: Altromin 1320 (Velaz Praha), daily dose of 15 g
- Water: ad libitum, according to SN 757111
- Cleaning: disinfection of cages
- Acclimatization: quarantine
- Acclimatization period: 14 days

ENVIRONMENTAL CONDITIONS
- Temperature : 22 ± 3 °C
- Humidity: 50 ± 15 %
- Photoperiod (hrs dark / hrs light): 12/12

Controlling of temperature and humidity automatic

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Details on oral exposure:
VEHICLE 20 % aqueous solution was added to the appropriate amount of sample.
DOSAGE PREPARATION For the selected level logarithmic dose OVA Labor 751 05 was used.
Doses:
logaritmic doses:
6310; 7943; 10000; 12590; 15850 mg/kg bw
No. of animals per sex per dose:
Ten groups for avery gender
Details on study design:
- Observation after application: immediately after application, 30 minutes, 3 hours after application, the following morning and afternoon, and even days after at least once a day
- Period of observation: 14 days

CLINICAL OBSERVATION
- Mortality
- Hair, visible mucous membranes,psychic activity, somatomotor activity, response to stimuli with a focus on sensibilityand reactivity, lacrimation,respiration,digestive apparatus, urogenital apparatus.Animals that died during the experiment were dissected. Organs and muscle were examined macroscopically.Surviving animals after 14 dayswere killed and autopsied, organs and muscle macroscopically assessed. After exenteration of the Iiterior organs were assessed by their color, size, consistency and structure.Urine biochemical test focused on findings proteins, blood sugar, ketones, bilirubin, urobilinogen and pH was performed.Characteristics of the sample toxicity was calculated according to the assess evaluation of clinical symptoms of intoxication patomorfologic changes to mortality in the course of a 14-day experiment
Statistics:
Probit

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
ca. 11 205 mg/kg bw
Based on:
test mat.
Mortality:
6310 mg/kg bw: 0 death
7943 mg/kg bw: 1 male
10000 mg/kg bw: 2 female
12590 mg/kg bw: 4 male and 3 female
15850 mg/kg bw: 5 male and 5 female
Clinical signs:
No observations
Body weight:
No observations
Gross pathology:
No observations

Any other information on results incl. tables

Table 2. Dead animals

logaritmic doses number on dead animals %
g/kg M F  
6 . 310 0 0 0
7 . 943 1 0 10
10 . 00 0 2 20
12.59 4 3 70
15 . 85 5 5 100

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
LD50 = 11205 mg/kg bw
Executive summary:

Method

The substance was tested for acute oral toxicity in rats Wistar strain according to OECD 401.

Logaritmic doses between 6310 and 1585 mg/kg bw were somministered and mortality was observed at the 14th day.

Clinical signs were observed and macroscopic autopsy was performed after the last somministration of 1585 mg/kg bw.

Urine biochemical test was also performed.

Characteristics of the sample toxicity was calculated according to the assess evaluation of clinical symptoms of intoxication patomorfologic changes to mortality in the course of a 14-day experiment.

Results

After 14 days of observation starting from the application the registering substances was defined as very weakly toxic with a LD50 = 11205 mg/kg bw.