N,N'-dibutyl-N,N'-bis(1,2,2,6,6-pentamethylpiperidin-4-yl)-6-(pyrrolidin-1-yl)-1,3,5-triazine-2,4-diamine

Acute Toxicity: dermal

Administrative data

Endpoint:

acute toxicity: dermal

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2014

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

test procedure in accordance with generally accepted scientific standards and described in sufficient detail

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2014

Report date:

2014

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 402 (Acute Dermal Toxicity)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test type:

fixed dose procedure

Limit test:

yes

Test material

Test material information

Constituent 1

Reference substance name:

N,N'-dibutyl-N,N'-bis(1,2,2,6,6-pentamethylpiperidin-4-yl)-6-(pyrrolidin-1-yl)-1,3,5-triazine-2,4-diamine

EC Number:

940-393-4

Cas Number:

1702355-94-9

Molecular formula:

C35 H66 N8

IUPAC Name:

N,N'-dibutyl-N,N'-bis(1,2,2,6,6-pentamethylpiperidin-4-yl)-6-(pyrrolidin-1-yl)-1,3,5-triazine-2,4-diamine

Test material form:

solid: bulk

Details on test material:

- State of aggregation: solid

Test animals

Species:

rat

Strain:

Wistar

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: Charles River Wiga GmbH, Germany
- Age at study initiation: 8-12 weeks
- Housing: single
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 +/- 3
- Humidity (%): 30-70
- Air changes (per hr): 10
- Photoperiod (hrs dark / hrs light): 12/12

Administration / exposure

Type of coverage:

semiocclusive

Vehicle:

other: corn oil

Details on dermal exposure:

TEST SITE
- Area of exposure: dorsal and dorsolateral parts of the trunk
- % coverage: 10

REMOVAL OF TEST SUBSTANCE
- Washing (if done): after removal with warm water
- Time after start of exposure: 24h

TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 5 ml/kg bw
- Concentration (if solution): 40 g/100 ml

Duration of exposure:

24h

Doses:

2000 mg/kg bw

No. of animals per sex per dose:

5

Control animals:

not required

Details on study design:

- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Clinical signs for each animal were recorded several times on the day of administration and at least once during each workday thereafter, individual body weights shortly before administration (day 0), weekly thereafter and on the last day of observation.
- Necropsy of survivors performed: yes
- Other examinations performed: skin findings, mortality, pathology

Results and discussion

Effect levels

Key result

Sex:

male/female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Mortality:

No mortality occurred.

Clinical signs:

No systemic clinical signs were observed during clinical examination

Body weight:

The body weight of the female animals stagnated in three animals and marginally decreased in two other animals during the first observation week, but increased within the normal range during the second week.
The mean body weight of the male animals increased within the normal range throughout the study period.

Gross pathology:

No macroscopic pathologic abnormalities were noted in the animals (5 males and 5 females) examined on the last day of observation.

Other findings:

o Slight to severe erythema grade (1 to 4)
o Very slight to moderate edema (grade 1 to 3)
o Incrustations
o Scaling

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met