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Diss Factsheets

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2007-05-16 to 2007-05-30
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP Guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2007
Report date:
2007

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.1100 (Acute Oral Toxicity)
GLP compliance:
yes
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
A mixture of Propanoic acid, -1-methyl, 2-hydroxy-, (C12-14)-alkyl ester, Propanoic acid, 2-hydroxy-, 2-(C12-14-alkyloxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoeth oxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoeth oxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester and Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoeth oxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester
EC Number:
941-488-3
Molecular formula:
UVCB Substance of nominal composition C18H34O5 - C20H38O5
IUPAC Name:
A mixture of Propanoic acid, -1-methyl, 2-hydroxy-, (C12-14)-alkyl ester, Propanoic acid, 2-hydroxy-, 2-(C12-14-alkyloxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoeth oxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester, Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoeth oxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester and Propanoic acid, 2-hydroxy-, 2-(2-(2-(2-(2-(2-(2-(2-(C12-14-alkyloxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoeth oxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethoxy)-1-methyl-2-oxoethyl ester
Details on test material:
- Name of test material (as cited in study report): STEPAN MILD-L3
- Physical state: Clear liquid
- Lot/batch No.: Lot# 17821-040407
- Stability under test conditions: stable

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Harlan Sprague-Dawley, Indianapolis, Indiana, USA
- Age at study initiation: 6-10 weeks
- Weight at study initiation: 204 - 225g
- Fasting period before study: overnight
- Housing: individually in stainless steel caging
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: at least 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°F): 64-79°F
- Humidity (%): 30-70%
- Air changes (per hr): Not specified
- Photoperiod (hrs dark / hrs light): 12 hour light:dark cycle

IN-LIFE DATES: From: 2007-05-16 To: 2007-05-30

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
unchanged (no vehicle)
Details on oral exposure:
MAXIMUM DOSE VOLUME APPLIED: 5.0 g/kg bw
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
5 per sex per dose
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing:
Observations: Day 1 1, 2 and 4 hours after dosing then once daily
Weight: At study initiation and on days 7 and 14.
- Necropsy of survivors performed: yes
Statistics:
If significant mortality occurs calculation of LC50 and 95% confidence intervals may be performed using the method of moving averages and the tables constructed by Weil (1952)

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Mortality:
No mortalities observed
Clinical signs:
No clinical signs noted.
Body weight:
No treatment related effect on bodyweight noted.
Gross pathology:
No treatment related effects noted.

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
The administration of the test material by oral gavage at a dose of 5000 mg/kg bw to Sprague-Dawley rats (5 male/5 female) produced no mortalities or other indication of treatment related effects. The LD50 was determined to be > 5000 mg/kg bw.
Executive summary:

The acute oral toxicity of the neat test material was assessed in male and female rats in accordance to OECD Guideline No. 401, and US EPA OPPTS 870.1100. Five male and five female rats were dosed by oral gavage with 5000 mg/kg bw. After a 14 day observation period there were no mortalities. There were no treatment related effects observed on bodyweight or at gross necropsy. The LD50 was > 5000 mg/kg bw.

In accordance with Regulation (EC) No. 1272/2008 the substance is not classified for acute toxicity by the oral route.