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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
21-01-2015 to 04-02-2015
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: study according to the guideline under GLP

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
Qualifier:
according to guideline
Guideline:
EU Method B.3 (Acute Toxicity (Dermal))
GLP compliance:
yes (incl. QA statement)
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2-(2-hexadecyl-4,5-dihydro-1H-imidazol-1-yl)ethyl heptadecanoate; 2-(4-heptadecanoylpiperazin-1-yl)ethyl heptadecanoate; 2-heptadecyl-1-[2-(2-hexadecyl-4,5-dihydro-1H-imidazol-1-yl)ethyl]-4,5-dihydro-1H-imidazole
EC Number:
800-253-4
Cas Number:
1419212-73-9
IUPAC Name:
2-(2-hexadecyl-4,5-dihydro-1H-imidazol-1-yl)ethyl heptadecanoate; 2-(4-heptadecanoylpiperazin-1-yl)ethyl heptadecanoate; 2-heptadecyl-1-[2-(2-hexadecyl-4,5-dihydro-1H-imidazol-1-yl)ethyl]-4,5-dihydro-1H-imidazole
Constituent 2
Reference substance name:
Fats and Glyceridic oils, vegetable, winterized, reaction products with ammonia-ethanolamine reaction by-products
IUPAC Name:
Fats and Glyceridic oils, vegetable, winterized, reaction products with ammonia-ethanolamine reaction by-products
Constituent 3
Reference substance name:
Reaction products of C16 saturated and C18 unsaturated fatty acids and fatty acid glycerides with by-products from 2 aminoethanol and ammonia reaction
IUPAC Name:
Reaction products of C16 saturated and C18 unsaturated fatty acids and fatty acid glycerides with by-products from 2 aminoethanol and ammonia reaction
Test material form:
liquid: viscous
Details on test material:
Identification: Fats and Glyceridic oils, vegetable, winterized, reaction products with ammonia-ethanolamine reaction products
Physical state / Appearance: brown extremely viscous liquid
Storage Conditions: room temperature in the dark

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Harlan Laboratories UK Ltd., Oxon, UK
- Strain: Wistar (RccHan™:WIST)
- Age at study initiation: 8-12 weeks
- Weight at study initiation: males: 234-250 g; females 206-220 g
- Housing: during 24 h exposure period individually, thereafter 5/sex/cage (suspended solid floor polypropylene cages furnished with woodflakes)
- Diet: 2014C Teklad Global Rodent diet ad libitum
- Water: ad libitum
- Acclimation period: ≥ 3 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19-25 °C
- Humidity (%): 30-70%
- Air changes (per hr): ≥ 15/hour
- 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 ( % coverage) : 10%
- Type of wrap if used: surgical gauze semi-occluded with a piece of self-adhesive bandage

REMOVAL OF TEST SUBSTANCE: after 24 h exposure treated skin and surrounding hair was wiped with cotton wool moistened with arachis oil BP

Duration of exposure:
24 hours
Doses:
2000 mg/kg bw
No. of animals per sex per dose:
5 males and 5 females
Control animals:
not required
Details on study design:
- Duration of observation period following administration: 14 days
- Body weight: at study start and weekly thereafter
- Clinical signs: 1/2, 1, 2, and 4 hours after exposure and then daily for 14 days
- Irritation: after removal of the dressing and daily for 14 days
- Mortality/morbidity: twice daily
- Necropsy : macroscopic examination
Statistics:
NA

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Mortality:
None
Clinical signs:
other: None
Gross pathology:
no effects
Other findings:
Signs of skin irritation in 3 males and all females (very slight to well-defined erythema, very slight oedema, crust formation, hemorrhage of dermal capillaries, small superficial scattered scabs and scab lifting to reveal glossy skin)

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The LD50 for dermal toxicity is > 2000 mg/kg bw
Executive summary:

Wistar rats (5/sex) were dermally exposed to the substance for 24 hours (semi occlusion) at 2000 mg/kg bw. No mortality, clinical signs or macroscopic changes were seen. Body weight gain was within normal ranges. Most animals showed signs of irritation. The LD50 is > 2000 mg/kg bw