Fatty acids, C18-unsatd., dimers, oligomeric reaction products with fatty acids, C16-18 and C18-unsatd., branched and linear, tetraethylenepentamine and triethylenetetramine

Acute Toxicity: oral

Administrative data

Endpoint:

acute toxicity: oral

Type of information:

experimental study

Adequacy of study:

key study

Study period:

6th February 2012 to 21st June 2012.

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: GLP study conducted according to relevant guidelines.

Cross-reference

Cross-reference 1

Reason / purpose for cross-reference:

reference to same study

Cross-reference 2

Reason / purpose for cross-reference:

reference to other study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2012

Report date:

2012

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method B.1 tris (Acute Oral Toxicity - Acute Toxic Class Method)

Deviations:

no

Principles of method if other than guideline:

Not applicable.

GLP compliance:

yes

Test type:

acute toxic class method

Limit test:

yes

Test material

Test material information

Constituent 1

Reference substance name:

Fatty acids, C18-unsatd., dimers, oligomeric reaction products with fatty acids, C16-18 and C18-unsatd., branched and linear, tetraethylenepentamine and triethylenetetramine

EC Number:

500-382-3

EC Name:

Fatty acids, C18-unsatd., dimers, oligomeric reaction products with fatty acids, C16-18 and C18-unsatd., branched and linear, tetraethylenepentamine and triethylenetetramine

Cas Number:

157707-73-8

IUPAC Name:

Reaction product of fatty acids, C18-unsatd., dimers, and trimers, with Amines, polyethylenepoly-, triethylenetetramine fraction and amines, polyethylenepoly-, tetraethylenepentamine fraction

Constituent 2

Reference substance name:

MonoFA_DimerFA__TETA_TEPA_PAA

IUPAC Name:

MonoFA_DimerFA__TETA_TEPA_PAA

Constituent 3

Reference substance name:

Fatty acids, C18-unsatd., dimers, oligomeric reaction products with fatty acids, C16-18 and C-18 unsatd., branched and linear, tetraethylenepentamine and triethylenetetramine

IUPAC Name:

Fatty acids, C18-unsatd., dimers, oligomeric reaction products with fatty acids, C16-18 and C-18 unsatd., branched and linear, tetraethylenepentamine and triethylenetetramine

Test material form:

other: liquid

Details on test material:

- Name of test material (as cited in study report): MonoFA_DimerFA__TETA_TEPA_PAA- Physical state: Yellow liquid with a brown hue. - Analytical purity: 100%- Lot/batch No.: BB001148V1- Expiration date of the lot/batch: 30th June 2012- Storage condition of test material: When not in use the test article was stored in a sealed container, at room temperature in the dark.

Test animals

Species:

rat

Strain:

other: HsdHan:WIST

Sex:

female

Details on test animals or test system and environmental conditions:

TEST ANIMALS- Source: Harlan UK Ltd, Bicester.- Age at study initiation: 8 to 10 weeks of age- Weight at study initiation: 180 - 204 g. The weight variation did not exceed ±20% of the mean weight.- Fasting period before study: Animals were fasted for a period on the evening of the day prior to dosing until approximately 3 hours after dosing. - Housing: The animals were housed in groups of up to five during the acclimatisation period. From the day prior to dosing (Day –1), the rats were housed in groups of three. - Diet: SQC(E) Rat and Mouse Maintenance Diet No 1 was freely available until the fasting period. - Water: Mains water was provided, ad libitum, via cage-mounted water bottles.- Acclimation period: 9 - 14 daysENVIRONMENTAL CONDITIONS- Temperature (°C): 20 to 24°C- Humidity (%): 45 to 65%- Air changes (per hr): 15 to 20 air changes per hour- Photoperiod (hrs dark / hrs light): 12 hours light and 12 hours dark.

Administration / exposure

Route of administration:

oral: gavage

Vehicle:

corn oil

Details on oral exposure:

VEHICLE- Corn oilMAXIMUM DOSE VOLUME APPLIED: 10 mL/kg bw.DOSAGE PREPARATION:Due to the viscosity of the test article, it had to be diluted in order for it to be dosed. The test article was dispersed in corn oil because the test article did not suspend in purified water. The formulated concentrations were calculated from the selected dose level and the dose volume of 10 mL/kg. All formulations were used within two hours of preparation.The formulations were maintained on a magnetic stirrer prior to administration to ensure homogeneity.CLASS METHOD- Rationale for the selection of the starting dose: Since there were no data to indicate that deaths may occur at dose levels of less than 2000 mg/kg bw, the first dose level was 2000 mg/kg bw.

Doses:

2000 mg/kg bw

No. of animals per sex per dose:

3 females per dose.

Control animals:

no

Details on study design:

Two groups of 3 females were administered 2000 mg/kg bw in a maximum dose volume of 10 mL/kg. The treatment of animals was sequential to allow sufficient time between each group to confirm the survival of the previously dosed animals.Dose levels were expressed gravimetrically and in terms of test article received (without regard to purity or active content).Individual dose volumes (mL) were calculated using the fasted body weights of the rats on the morning of dosing (Day 1) and the dose volume of 10 mL/kg.Treated rats were observed closely for clinical signs of reaction to treatment. Clinical signs were recorded immediately post-dose, at approximately 15 and 30 minutes post-dose, hourly between 1 and 4 hours post-dose (inclusive), twice daily on Days 2, 3 and 4 and once daily from the fifth to last day of the observation period. Individual records of clinical signs were maintained for each treated rat.All animals were examined at the beginning and end of the working day throughout the acclimatisation and study periods to ensure they were in good health.Rats were weighed on Day -1 (day before dosing) and on Days 1, 4, 8 and 15.Rats were killed on day 15. The necropsy procedure included inspection of external surfaces and orifices, all viscera and tissue within the abdominal, thoracic and cranial cavities, free-hand sectioning of the liver and kidneys and examination of representative sections of mucosal surfaces of the stomach, small and large intestines. No tissue preservation or histopathological assessment of tissues was undertaken.

Statistics:

Not required.

Results and discussion

Effect levels

Sex:

female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Mortality:

There were no deaths following a single oral dose of MonoFA_DimerFA__TETA_TEPA_PAA at 2000 mg/kg bw.

Clinical signs:

other: No clinical signs were observed.

Gross pathology:

No macroscopic changes were observed for animals killed on Day 15.

Other findings:

No other findings reported.

Any other information on results incl. tables

No additional information.

Applicant's summary and conclusion

Interpretation of results:

not classified

Remarks:

Migrated informationCriteria used for interpretation of results: EU

Conclusions:

Under the conditions of this study, the acute median lethal oral dose level of the test article, MonoFA_DimerFA__TETA_TEPA_PAA, was found to exceed 2000 mg/kg bw.

Executive summary:

A study was conducted to determine the acute oral toxicity of MonoFA_DimerFA__TETA_TEPA_PAA when administered as a single dose by oral gavage to female HsdHan:WIST rats. The study was conducted in accordance with OECD Test Guideline 423 and Method B.1 tris of Council Regulation (EC) No 440/2008, and was compliant with GLP.

Two groups of three female fasted rats were given the test article as a single dose on Day 1 by oral gavage at a dose level of 2000 mg/kg bw. The test article was dispersed in corn oil and administered at a dose volume of 10 mL/kg. Animals were observed for 14 days following treatment and during this observation period, mortality, abnormal clinical signs and bodyweight were recorded. All animals were killed on Day 15 and subsequently underwent a full necropsy.

There were no deaths following a single oral dose of MonoFA_DimerFA__TETA_TEPA_PAA among rats dosed at 2000 mg/kg bw and no clinical signs were observed. All rats gained weight during the first and second weeks of the observation period. Macroscopic examination of these animals revealed no abnormalities.

Under the conditions of this study, the acute median lethal oral dose level of the test article, MonoFA_DimerFA__TETA_TEPA_PAA, was found to exceed 2000 mg/kg bw.