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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Repeated dose toxicity: oral

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Administrative data

Endpoint:
chronic toxicity: oral
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
weight of evidence
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Justification for type of information:
analogue approach for alkylethersulfates contained in registered substance - see attached read across justification.

Data source

Reference
Reference Type:
publication
Title:
Environmental and human safety of major surfactants.
Author:
Arthur D. Little, Inc.
Year:
1991
Bibliographic source:
Volume 1. Anionic surfactants. Part 2. Alcohol ethoxy sulfates. Final report to: The Soap and Detergent Association

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 452 (Chronic Toxicity Studies)
GLP compliance:
not specified
Limit test:
no

Test material

Constituent 1
Reference substance name:
Poly(oxy-1,2-ethanediyl),a-sulfo-w-(dodecyloxy)-, sodium salt
IUPAC Name:
Poly(oxy-1,2-ethanediyl),a-sulfo-w-(dodecyloxy)-, sodium salt
Constituent 2
Reference substance name:
98112-64-2
EC Number:
619-320-2
Cas Number:
98112-64-2
IUPAC Name:
98112-64-2
Test material form:
not specified
Details on test material:
- Poly(oxy-1,2-ethanediyl), a-sulfo-w-(dodecyloxy)-, sodium salt
- Ethoxylation degree: 3EO
- Purity: No data

Test animals

Species:
rat
Strain:
not specified
Sex:
male/female

Administration / exposure

Route of administration:
other: Drinking water study & Feeding study
Vehicle:
unchanged (no vehicle)
Analytical verification of doses or concentrations:
not specified

Examinations

Observations and examinations performed and frequency:
survival, growth, food consumption, body weights, clinical laboratory findings, hamatology and urinalyses.

Results and discussion

Results of examinations

Clinical signs:
no effects observed
Mortality:
no mortality observed
Body weight and weight changes:
no effects observed
Food consumption and compound intake (if feeding study):
no effects observed
Food efficiency:
not examined
Water consumption and compound intake (if drinking water study):
effects observed, treatment-related
Description (incidence and severity):
A slight, but consistently higher water consumption by all rats receiving the test compound in their drinking water and a significant
difference in the empty cecum to body weight ratio of females was oberved.
Ophthalmological findings:
not examined
Haematological findings:
no effects observed
Clinical biochemistry findings:
no effects observed
Urinalysis findings:
no effects observed
Behaviour (functional findings):
not specified
Immunological findings:
not examined
Organ weight findings including organ / body weight ratios:
no effects observed
Gross pathological findings:
not specified
Neuropathological findings:
not examined
Histopathological findings: non-neoplastic:
no effects observed
Histopathological findings: neoplastic:
no effects observed

Effect levels

open allclose all
Key result
Dose descriptor:
NOAEL
Effect level:
> 250 mg/kg bw/day (nominal)
Based on:
test mat.
Sex:
male/female
Basis for effect level:
other: Feeding study
Dose descriptor:
NOAEL
Effect level:
> 75 mg/kg bw/day (nominal)
Based on:
test mat.
Sex:
male/female
Basis for effect level:
other: Drinking water study

Target system / organ toxicity

Critical effects observed:
no

Applicant's summary and conclusion

Executive summary:

Poly(oxy-1,2-ethanediyl),a-sulfo-w-(dodecyloxy)-, sodium salt was tested in a chronic toxicity feeding and drinking water study comparable to a OECD 452 guideline study on rats. A NOAEL of 250 mg/kg bw/day (nominal, feeding) was reported.