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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Toxicological information

Acute Toxicity: dermal

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Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1991
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1991
Report date:
1991

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

Constituent 1
Chemical structure
Reference substance name:
Sodium 2-[methyloleoylamino]ethane-1-sulphonate
EC Number:
205-285-7
EC Name:
Sodium 2-[methyloleoylamino]ethane-1-sulphonate
Cas Number:
137-20-2
Molecular formula:
C21H41NO4S.Na
IUPAC Name:
sodium 2-[methyl(oleoyl)amino]ethanesulfonate
Test material form:
semi-solid (amorphous): gel
Remarks:
paste
Details on test material:
CAS name: Sodium methyl oleyl taurate
Name: Ölsäuremethyltaurid-Natriumsalz

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Winkelmann, Borchen
- Age at study initiation: adult
- Weight at study initiation: 188 ± 4.5 g (male), 167 ± 7.1 (female)
- Fasting period before study: over night
- Housing: Macrolon cages (type 3)
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: 7 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 20 ± 2
- Humidity (%): 28 - 40
- Air changes (per hr): 12 - 15
- Photoperiod (hrs dark / hrs light): 12 / 12

Administration / exposure

Type of coverage:
semiocclusive
Vehicle:
unchanged (no vehicle)
Details on dermal exposure:
TEST SITE
- Area of exposure: 10%
- % coverage: 100

REMOVAL OF TEST SUBSTANCE
- Washing (if done): no

TEST MATERIAL
- Amount applied: 2000 mg/kg bw (limit dose)

Duration of exposure:
24 hours
Doses:
2000 mg/kg bw (limit dose)
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: daily
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight

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 lethality occurred
Clinical signs:
other: No clinical signs of intoxication observed
Gross pathology:
No specific compound-associated pathology was found, except some residual discoloration of the skin at the application site.

Applicant's summary and conclusion

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