A mixture of: N,N-diethylpropane-1,3-diamine 6-methyl-2-(4-(2,4,6-triaminopyrimidin-5-ylazo)phenyl)benzothiazole-7-sulfonate; 2,2-iminodiethanol 6-methyl-2-(4-(2,4,6-triaminopyrimidin-5-ylazo)phenyl)benzothiazole-7-sulfonate; 2-methylaminoethanol 6-methyl-2-(4-(2,4,6-triaminopyrimidin-5-ylazo)phenyl)benzothiazole-7-sulfonate

Acute Toxicity: dermal

Administrative data

Endpoint:

acute toxicity: dermal

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: The study was conducted according to the OECD TG 402 and followed GLP.

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1988

Report date:

1988

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 402 (Acute Dermal Toxicity)

Version / remarks:

(1987)

Deviations:

no

GLP compliance:

yes

Test type:

standard acute method

Limit test:

yes

Test material

Test material information

Constituent 1

Reference substance name:

A mixture of: N,N-diethylpropane-1,3-diamine 6-methyl-2-(4-(2,4,6-triaminopyrimidin-5-ylazo)phenyl)benzothiazole-7-sulfonate; 2,2-iminodiethanol 6-methyl-2-(4-(2,4,6-triaminopyrimidin-5-ylazo)phenyl)benzothiazole-7-sulfonate; 2-methylaminoethanol 6-methyl-2-(4-(2,4,6-triaminopyrimidin-5-ylazo)phenyl)benzothiazole-7-sulfonate

EC Number:

403-410-1

EC Name:

A mixture of: N,N-diethylpropane-1,3-diamine 6-methyl-2-(4-(2,4,6-triaminopyrimidin-5-ylazo)phenyl)benzothiazole-7-sulfonate; 2,2-iminodiethanol 6-methyl-2-(4-(2,4,6-triaminopyrimidin-5-ylazo)phenyl)benzothiazole-7-sulfonate; 2-methylaminoethanol 6-methyl-2-(4-(2,4,6-triaminopyrimidin-5-ylazo)phenyl)benzothiazole-7-sulfonate

Cas Number:

114565-65-0

Molecular formula:

C18 H16 N8 O3 S2 . x C7 H18 N2 . x C4 H11 N O2 . x C3 H9 N O

IUPAC Name:

(3-aminopropyl)diethylamine; 2-(methylamino)ethan-1-ol; 2-[(2-hydroxyethyl)amino]ethan-1-ol; 6-methyl-2-{4-[2-(2,4,6-triaminopyrimidin-5-yl)diazen-1-yl]phenyl}-1,3-benzothiazole-7-sulfonic acid

Details on test material:

- Name of test material (as cited in study report): FAT 11'184/B
- Physical state: powder
- Analytical purity: No data mentioned in the report. However, in an Ames test report (CCR 124312, see IUCLID chapter 7.6.1) using the same batch of test substance the analytical purity was given as 89.6%.
- Lot/batch No.: Op. 1 BD 823/8
- Expiration date of the lot/batch: January, 1993
- Stability under test conditions: test substance in dilution is stable for at least 2 hours

Test animals

Species:

rat

Strain:

Wistar

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Designation: KFM-Han. Wistar (outbred, SPF-Quality)
- Source: Kleintierfarm Madoerin AG, CH 4414 Fuellinsdorf / Switzerland
- Age at study initiation: 9 -11 weeks
- Weight at study initiation: Males, 229-247 g; Females, 200-216 g
- Housing: individually in Makrolon type-2 cages with standard softwood bedding
- Diet: Pelleted standard Kliba 343, Batch 87/87 rat maintenance diet, ad libitum
- Water: tap water, ad libitum
- Acclimation period: at least one week

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 +/- 3
- Humidity (%): 40 - 70
- Air changes (per hr): 10 - 15
- Photoperiod (hrs dark / hrs light): 12/12

Administration / exposure

Type of coverage:

occlusive

Vehicle:

CMC (carboxymethyl cellulose)

Details on dermal exposure:

The test article was placed into a glass beaker on a tared Mettler PK 300 balance, and the vehicle (4 % solution of CMC, carboxymethylcellulose sodium salt purum, Fluka AG, CH 9470 Buchs/Switzerland in distilled water) was added. A weight by volume dilution was prepared using a homogenizer (Ultra-Turrax). Homogeneity of the test article in the vehicle was maintained during treatment using a magnetic stirrer. The preparation was made immediately prior to dosing.
The backs of the animals was shaved 24 hours prior application of the test material. The test article was applied evenly on the skin with a syringe and covered with an occlusive dressing; the treated area was about 10 % of the total body surface. The application volume was 4 ml/kg bw.
The dressing was wrapped around the abdomen and fixed with an elastic adhesive bandage. Twenty-four hours after the application, the dressing was removed and the treated skin was washed with lukewarm tap water and dried with disposable paper towels.

Duration of exposure:

24 hours

Doses:

A single dose of 2000 mg/kg bw was tested.

No. of animals per sex per dose:

Five/sex/dose

Control animals:

no

Details on study design:

- Duration of observation period following administration: 15 days
- Frequency of observations for mortality and clinical symptoms: Four times during test day 1, and daily during days 2-15.
- Frequency of weighing: Test days 1 (pre-administration), 8 and 15.
- Necropsy of survivors performed: yes; all animals were necropsied after sacrifice by intraperitoneal injection of sodium pentobarbitone.
-Gross pathology: yes
- Skin reaction: Skin was examined for erythema, edema, necrosis, crusts and scale formations; the reaction was assessed according to the method of Noakes and Sanderson (A Method for Determining the Dermal Toxicity of Pesticides. Brit. J. Industr. Med., 26, 59-64, 1969).

Results and discussion

Effect levels

Sex:

male/female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Remarks on result:

other: No mortality occurred, and no clinical symptoms indicative of toxicity were seen; at necropsy, gross pathology revealed no abnormalities. Local skin findings consisted of erythema and yellow discoloration; the rats recovered until test ending.

Any other information on results incl. tables

Mean body weights (g +/- standard deviation SD):

Animals treated with 2000 mg/kg bw	Day 1	Day 8	Day 15
Males (n = 5)	238 ±7.7	257±8.2	281±9.7
Females (n = 5)	208±6.3	208±8.0	218±8.0

Applicant's summary and conclusion

Interpretation of results:

practically nontoxic

Remarks:

Migrated information Criteria used for interpretation of results: EU