reaction mass of: trisodium 3-(5-(2,6-difluoropyrimidin-4-ylamino)-2-sulfonatophenylazo)-5-(4-fluoro-6-morpholin-4-yl-1,3,5-triazin-2-ylamino)-4-hydroxy-2,7-naphthalenedisulfonate; trisodium 3-(5-(4,6-difluoropyrimidin-2-ylamino)-2-sulfonatophenylazo)-5-(4-fluoro-6-morpholin-4-yl-1,3,5-triazin-2-ylamino)-4-hydroxy-2,7-naphthalenedisulfonate

Acute Toxicity: oral

Administrative data

Endpoint:

acute toxicity: oral

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1998-Mar-24 to 1998-Apr-09

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1998

Report date:

1998

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 401 (Acute Oral Toxicity)

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method B.1 (Acute Toxicity (Oral))

GLP compliance:

yes

Test type:

standard acute method

Limit test:

yes

Test material

Test material information

Constituent 1

Reference substance name:

-

EC Number:

436-890-6

EC Name:

-

Molecular formula:

C27H18F3N10Na3O11S3

IUPAC Name:

hexasodium 3-(2-{5-[(2,6-difluoropyrimidin-4-yl)amino]-2-sulfophenyl}diazen-1-yl)-5-{[4-fluoro-6-(morpholin-4-yl)-1,3,5-triazin-2-yl]amino}-4-hydroxynaphthalene-2,7-disulfonate 3-(2-{5-[(4,6-difluoropyrimidin-2-yl)amino]-2-sulfophenyl}diazen-1-yl)-5-{[4-fluoro-6-(morpholin-4-yl)-1,3,5-triazin-2-yl]amino}-4-hydroxynaphthalene-2,7-disulfonate

Test material form:

solid: particulate/powder

Details on test material:

see below

Test animals

Species:

rat

Strain:

Sprague-Dawley

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: Harlan Winkelmann GmbH, Gartenstr. 27, D-33178 Borchen
- Age at study initiation: 6-10 weeks
- Weight at study initiation: Male = 203 g; Female = 191 g
- Fasting period before study: from about 16 hours before to 3 - 4 hours after treatment
- Housing: in fully air-conditioned rooms in macrolon cages (type 4) on soft wood granulate in groups of 5 animals
- Diet (e.g. ad libitum): ssniff RIM-H (V 1534), ad libitum
- Water (e.g. ad libitum): tap water in plastic bottles, ad libitum
- Acclimation period: at least seven days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 ± 3 °C
- Humidity (%): 50± 20 %
- Photoperiod (hrs dark / hrs light): 12 hours dark / 12 hours light

Administration / exposure

Route of administration:

oral: gavage

Vehicle:

water

Details on oral exposure:

VEHICLE
- Concentration in vehicle: received the compound as a 20 % solution in deionized water
- Amount of vehicle (if gavage): 10 ml/kg body weight

DOSAGE PREPARATION (if unusual):
- Reaktiv Rot FC 73270 was dissolved in the stated concentration in deionized water and distributed homogeneously by means of a magnetic stirrer.

Doses:

2000 mg/kg body weight

No. of animals per sex per dose:

5/sex

Control animals:

no

Details on study design:

- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: observed frequently on day 1, thereafter twice daily and once on weekends and public holidays; weighed once weekly
- Necropsy of survivors performed: yes

Results and discussion

Effect levels

Effect levels 1

Sex:

male/female

Dose descriptor:

LD0

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Remarks on result:

not determinable due to absence of adverse toxic effects

Effect levels 2

Key result

Sex:

male/female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Remarks on result:

not determinable due to absence of adverse toxic effects

Mortality:

Male: 2000 mg/kg bw; Number of animals: 5; Number of deaths: 0
Female: 2000 mg/kg bw; Number of animals: 5; Number of deaths: 0

Clinical signs:

Red discoloured faeces and diarrhea. Within 2 days all clinical symptoms were reversible.

Body weight:

Development of body weight was not impaired

Gross pathology:

No gross pathology changes.

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

The LD0 and LD50 of Reactive Rat FC 73270 in male and female rats is > 2000 mg/kg body weight.

Executive summary:

In an acute oral toxicity study, groups of 6-10 weeks old Hsd:Sprague Dawley rats, 5/sex were given a single oral dose of Reactive Red FC 73270 in deionized water at a dose of 2000 mg/kg body weight and observed for 14 days.

Oral LD0 and LD50:

Male >2000 mg/kg body weight

Female >2000 mg/kg body weight

Combined >2000 mg/kg body weight

 

Reactive Red FC 73270 is of low toxicity based on the LD0 > 2000 mg/kg/d in both male and female Hsd:Sprague Dawley rats.