Terpene hydrocarbon alcohols, terpene processing by-products

Acute Toxicity: dermal

Administrative data

Endpoint:

acute toxicity: dermal

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2006-01-17 to 2006-01-31

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Justification for type of information:

This information is used for read-across to Terpene hydrocarbon alcohols

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2006

Report date:

2006

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:

standard acute method

Limit test:

yes

Test material

Test material information

Constituent 1

Reference substance name:

Terpineol multi: 8000-41-7

IUPAC Name:

Terpineol multi: 8000-41-7

Test material form:

other: liquid

Details on test material:

- Name of test material (as cited in study report): Dertol 90
- Substance type: multi-constituent
- Physical state: liquid
- Storage condition of test material: room temperature

Test animals

Species:

rat

Strain:

Sprague-Dawley

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: Elevage Janvier, Le Genest St Isle, France
- Age at study initiation: approximately 6 weeks old
- Weight at study initiation: males between 228 g and 272 g, and females between 217g and 222 g
- Acclimatisation period: at least 5 days
- Housing: Five animals of the same sex are kept in each makrolon cage, dimensions 47 cm X 31 cm X 19 cm
- Diet (e.g. ad libitum): rats-mice maintenance pelleted diet (ad libitum)
- Water (e.g. ad libitum): tap water from public distribution system (ad libitum)

ENVIRONMENTAL CONDITIONS
- Temperature (°C): between 19 and 25
- Humidity (%): between 30 and 50
- Air changes (per hr): at least 10 cycles
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES: From: 2006-01-17 To: 2006-01-31

Administration / exposure

Type of coverage:

semiocclusive

Vehicle:

unchanged (no vehicle)

Details on dermal exposure:

TEST SITE
- Area of exposure:
- % coverage: 10% of the total body
- Type of wrap if used: porous gauze dressing and non-irritating tape

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

TEST MATERIAL
- Amount(s) applied (volume or weight with unit): test group: 2.13 mL/kg body weight
- Concentration: undiluted

VEHICLE
- Amount(s) applied (volume or weight with unit): control group: 2 mL/kg body weight of distilled water

Duration of exposure:

24 h

Doses:

2000 mg/kg body weight

No. of animals per sex per dose:

5 males and 5 females

Control animals:

yes

Details on study design:

- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Systemic examinations were carried out to identify behavioral or toxic effects on physiological functions at 1, 3, 5, 24 and 48 h after administration of the product. Animals were weighed on D0 before application of the product, D2, D7, and D14.
- Necropsy of survivors performed: yes, performed on D14 for the macroscopic examination of the following organs: oesopahgus, stomach, duodenum, jejunum, ileum, caecum, rectum, spleen, liver, thymus, trachea, lungs, heart, kidneys, urinary bladder, testicles, ovaries, uterus, adrenals, pancreas and treatment area (skin).

Results and discussion

Effect levels

Key result

Sex:

male/female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Mortality:

No mortality

Clinical signs:

other: No systemic clinical signs were noted.

Gross pathology:

No significant toxic effects.

Applicant's summary and conclusion

Interpretation of results:

other: Not acutely harmful

Remarks:

according to EU CLP (EC No. 1272/2008 and its amendments).

Conclusions:

The dermal acute toxicity is >2000 mg/kg bw in male and female rats.

Executive summary:

Acute dermal toxicity study of Terpineol multi (a multi-constituent substance with alpha-Terpineol as its main constituent and gamma-Terpineol as the minor constituent) as a limit test was conducted according to OECD guideline 402 and in compliance with GLP. To groups of 5 Sprague-Dawley rats/sex were used: one control group exposed to distilled water and one test group. The test substance was applied to the skin by topical application for 24 h, under semi-occlusive conditions, at 2000 mg/kg bw, with a volume of 2.13 mL/kg bw. After exposure, exposure area was washed with distilled water. Animals were observed every day for systemic clinical signs and mortalities for 14 days. The animals were weighed on D0, D2, D7 and D14. Necropsies were done on D14 for macroscopic observations. No toxic effects were observed, this results in an LD50 > 2000 mg/kg bw.