Oligo

Acute Toxicity: dermal

Administrative data

Endpoint:

acute toxicity: dermal

Type of information:

experimental study

Adequacy of study:

key study

Study period:

29 Oct - 02 Dec 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2015

Report date:

2015

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 402 (Acute Dermal Toxicity)

Version / remarks:

adopted in 1981

Deviations:

no

Test guideline 2

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 402 (Acute Dermal Toxicity)

Version / remarks:

adopted in 2017

Deviations:

yes

Remarks:

no rationale for in vivo testing

GLP compliance:

yes (incl. QA statement)

Test type:

standard acute method

Limit test:

yes

Test material

Test material information

Constituent 1

Reference substance name:

Fatty acids C16-18 (even numbered), mono, di and triesters with sucrose, UVCB

Molecular formula:

not applicable, substance is UVCB

IUPAC Name:

Fatty acids C16-18 (even numbered), mono, di and triesters with sucrose, UVCB

Test animals

Species:

rat

Strain:

Sprague-Dawley

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: SAGE Labs
- Females nulliparous and non-pregnant: yes
- Age at study initiation: 8-9 weeks
- Weight at study initiation: 267-286 g males, 179-195 g females
- Housing: Singly in suspended stainless steel cages.
- Diet: Envigo Teklad Global 16% Protein Rodent Diet #2016, ad libitum
- Water: Filtered tap water, ad libitum
- Acclimation period: 8 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19-23
- Humidity (%): 40-61
- Air changes (per hr): 12
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES: From: October 29, 2015 To: November 12, 2015

Administration / exposure

Type of coverage:

occlusive

Vehicle:

water

Details on dermal exposure:

TEST SITE
- Area of exposure: 2 x 3 inches (approx. 5 x 7.5 cm)
- % coverage: 10% of body area
- Type of wrap if used: Gauze pad covered by Durapore tape.

REMOVAL OF TEST SUBSTANCE
- Washing: Washed with 3% soap solution followed by tap water.
- Time after start of exposure: 24 hrs.

TEST MATERIAL
- Treatment of test material prior to testing: Test substance was ground and passed through 425 micron sieve.
- Concentration (if solution): 60% (w/w) test substance/water
- Constant volume or concentration used: yes
- For solids, paste formed: yes

Duration of exposure:

24 hrs

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: Animals were observed for several hours after dosing, and then at least daily thereafter. Weighing was performed on Day 0, Day 7, and Day 14.
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, histopathology

Statistics:

Not used.

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 was seen during the study.

Clinical signs:

other: All animals appeared active and healthy during the study.

Gross pathology:

No abnormalities were noted during necropsy.

Other findings:

- Histopathology: No abnormalities were noted.

Applicant's summary and conclusion

Interpretation of results:

other: CLP/EU GHS criteria not met, no classification required according to Regulation (EC) No 1272/2008

Conclusions:

The acute dermal LD50 is > 2000 mg/kg bw. The test substance is not toxic by the dermal route.

Executive summary:

5 male and 5 female rats were exposed to a dose of 2000 mg/kg bw of the test substance Fatty acids C16-18 (even numbered), mono, di and triesters with sucrose (no CAS) dermally for 24 hrs under occlusive conditions. The animals were observed for 14 days after the end of exposure. No mortality was observed in the test animals, nor any other adverse effects. The acute dermal LD50 is > 2000 mg/kg bw.