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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

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

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2002
Report date:
2002

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
GLP compliance:
yes (incl. QA statement)
Remarks:
The Department of Health of the Government of the United Kingdom, GLP Monitoring Authority, UK
Test type:
fixed dose procedure
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Propylidynetrimethanol, propoxylated
EC Number:
500-041-9
EC Name:
Propylidynetrimethanol, propoxylated
Cas Number:
25723-16-4
Molecular formula:
C3H5(CH2OR)3 R= (C2H3(CH3)O)nH sum of n: >1 - <6.5 mol PO
IUPAC Name:
Propylidynetrimethanol, propoxylated
Details on test material:
Propylidenetrimethanol, propoxylated mw 310; clear,
colourless, viscous liquid; purity not reported

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Bantin & Kingman, Hull, UK.
- Age at study initiation: 8 - 12 weeks
- Weight at study initiation: least 200 g
- Housing: Individually during exposure and in groups of 5 by sex for the remainder of the study period
- Diet: ad libitum
- Water: ad libitum
- Acclimation period: 5 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19 - 25
- Humidity (%): 30 - 70
- Air changes (per hr): 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: Shorn skin
- % coverage: approx. 10% of the total body surface area
- Type of wrap if used: Self adhesive bandage

REMOVAL OF TEST SUBSTANCE
After the 24 h contact period, treated skin and surrounding hair were wiped with distilled water.
Duration of exposure:
24 h
Doses:
2000 mg/kg bw
No. of animals per sex per dose:
10
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: days 0, 7 and 14
- 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
Mortality:
No deaths occurred.
Clinical signs:
other: No signs of systemic toxicity were observed.
Gross pathology:
No abnormalities were noted on necropsy.

Any other information on results incl. tables

Additional data supporting the information is attached below under 'Attached background material'.

Applicant's summary and conclusion

Interpretation of results:
other: CLP/EU GHS criteria not met, no classification required according to Regulation (EC) No. 1272/2008.
Conclusions:
The acute dermal LD50 in the Sprague-Dawley CD strain rat was found to be > 2000 mg/kg bw.