Tetrasodium tripotassium (.my.-((2,2'-((3-imino-6-sulfonatophenyl-(N-methyl)-imino)bis((6-chloro-1,3,5-triazin-4,2-diyl)imino(2-hydroxy-5-sulfonato-3,1-phenylen)azo(phenylmethylen)azo))bis(4-sulfonatobenzoato))-dicuprate(7-)

Acute Toxicity: oral

Administrative data

Endpoint:

acute toxicity: oral

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From February 13, 1990

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1990

Report date:

1990

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 401 (Acute Oral Toxicity)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test type:

acute toxic class method

Limit test:

no

Test material

Test material information

Constituent 1

Reference substance name:

-

EC Number:

406-077-0

EC Name:

-

Molecular formula:

Hill formula: C53H29Cl2Cu2K3N18Na4O21S5

IUPAC Name:

dicopper(2+) tripotassium tetrasodium 2-{[({2-[3-({4-[(3-{[4-({3-[({[2-(2-carboxylato-5-sulfonatophenyl)diazen-1-yl](phenyl)methylidene}amino)azanidyl]-2-oxido-5-sulfonatophenyl}amino)-6-chloro-1,3,5-triazin-2-yl](methyl)amino}-4-sulfonatophenyl)amino]-6-chloro-1,3,5-triazin-2-yl}amino)-2-oxido-5-sulfonatophenyl]hydrazin-2-id-1-ylidene}(phenyl)methyl)imino]amino}-4-sulfonatobenzoate

Test material form:

solid: particulate/powder

Specific details on test material used for the study:

- Lot No.: LAB.J.-NO.: 6107/1427

Test animals

Species:

rat

Strain:

Wistar

Sex:

male/female

Details on test animals or test system and environmental conditions:

Animal breeder: dr. K Thomae GMBH, Biberach
Acclimatization period: at least one week
Number of animals per dose: 5 males/ 5 females
Type of cage: stainless steel wire mesh cages, type DK-III
Bedding: no bedding in the cages, sawdust in the waste trays
No. of animals per cage: 5
Identification: using cage cards and tails marking
Room temperature/relative humidity: the animals were housed in fully air-conditioned rooms, 20 -24 °C and 30-70 % of relative humidity.
Day/night rhythm: 12/12
Drinking water: ad libitum per day
Diet: Kliba-labordiaest 343
Food and water was assayed for contaminants
Animal weights: young adult animals of comparable weight
Fasting period: the animals were given no feed about 16 hours before administration but water was available ad libitum

Administration / exposure

Route of administration:

oral: gavage

Vehicle:

other: aqua dest.

Details on oral exposure:

Route of administration: single oral administration by gavage
Test substance formulation with aqua dest.
Form of administration: suspension

Doses:

Reason for the doses: based on the chemical and physical characteristic of the test substance no pronounced acute oral toxicity was expected, therefore the following dose has been chosen for the study: 2200 mg/kg bw.

No. of animals per sex per dose:

5 males and 5 females

Control animals:

not specified

Details on study design:

Observations: Signs and symptoms: recording of signs and symptoms several times on the day of administration, at least once each workday. Check for moribund and dead animals twice each workday and once on holidays.
Pathology: Withdrawal of food about 16 h before sacrifice with CO2, then necropsy with gross-pathological examination.

Results and discussion

Effect levels

Key result

Sex:

male/female

Dose descriptor:

LD50

Effect level:

2 200 mg/kg bw

Based on:

test mat.

Mortality:

No deaths

Gross pathology:

No pathologic findings noted

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

Under the study conditions, the acute oral LD50 of the test substance in Wistar rat was >2200 mg/kg bw.

Executive summary:

A study was conducted to determine the acute oral toxicity of the test substance in Wistar rats according to OECD Guideline 401, in compliance with GLP. Groups of 5 females and 5 males were dosed by gavage with the test substance suspended in aqua dest at a single limit dose of 2200 mg/kg bw. The rats were then observed for 14 d for mortality, clinical signs and bodyweight changes. Upon completion of the study, the stability of the substance was analytically verified. There was no mortality and no evident signs of toxicity or bodyweight loss were observed. The results of the chemical analysis confirmed the top dose to be 27.1 g/100 ml, 23% higher than the nominal value. Under the study conditions, the acute oral LD50 of the test substance in Wistar rat was >2200 mg/kg bw (Kirsch, 1990).