Pentasodium 2-[[8-[[4-chloro-6-[[3-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]naphthalene-1,5-disulphonate

Acute Toxicity: oral

Administrative data

Endpoint:

acute toxicity: oral

Type of information:

experimental study

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

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

Test material information

Constituent 1

Reference substance name:

Pentasodium 2-[[8-[[4-chloro-6-[[3-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]naphthalene-1,5-disulphonate

EC Number:

278-674-2

EC Name:

Pentasodium 2-[[8-[[4-chloro-6-[[3-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]naphthalene-1,5-disulphonate

Cas Number:

77365-64-1

Molecular formula:

C31H19ClN7Na5O19S6

IUPAC Name:

pentasodium 2-[[8-[[4-chloro-6-[[3-[[2-(sulphonatooxy)ethyl]sulphonyl]phenyl]amino]-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulphonato-2-naphthyl]azo]naphthalene-1,5-disulphonate

Test material form:

solid: particulate/powder

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): 12/12Controlling 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:

6310, 7943, 10000, 12590, 15850 mg/kg bw, logaritmic doses

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:

other: 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:

other: CLP 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.