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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: oral
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2022

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
GLP compliance:
yes (incl. QA statement)
Test type:
acute toxic class method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Zinc dioctanoate
EC Number:
209-156-6
EC Name:
Zinc dioctanoate
Cas Number:
557-09-5
Molecular formula:
C16H30O4Zn
IUPAC Name:
zinc(II) octanoate
Constituent 2
Chemical structure
Reference substance name:
Zinc decanoate
EC Number:
235-909-3
EC Name:
Zinc decanoate
Molecular formula:
C10H20O2.1/2Zn
IUPAC Name:
zinc(II) decanoate
Constituent 3
Chemical structure
Reference substance name:
Zinc dilaurate
EC Number:
219-518-5
EC Name:
Zinc dilaurate
Cas Number:
2452-01-9
Molecular formula:
C12H24O2.1/2Zn
IUPAC Name:
zinc(II) dodecanoate
Constituent 4
Chemical structure
Reference substance name:
Zinc dimyristate
EC Number:
240-369-7
EC Name:
Zinc dimyristate
Cas Number:
16260-27-8
Molecular formula:
C28H54O4Zn
IUPAC Name:
zinc(II) tetradecanoate
Constituent 5
Chemical structure
Reference substance name:
Zinc dipalmitate
EC Number:
225-652-5
EC Name:
Zinc dipalmitate
Cas Number:
4991-47-3
Molecular formula:
C16H32O2.1/2Zn
IUPAC Name:
zinc(II) hexadecanoate
Constituent 6
Chemical structure
Reference substance name:
Zinc distearate
EC Number:
209-151-9
EC Name:
Zinc distearate
Cas Number:
557-05-1
Molecular formula:
C18H36O2.1/2Zn
IUPAC Name:
zinc(II) octadecanoate
Constituent 7
Chemical structure
Reference substance name:
Zinc dioleate
EC Number:
209-154-5
EC Name:
Zinc dioleate
Cas Number:
557-07-3
Molecular formula:
C18H34O2.1/2Zn
IUPAC Name:
zinc(II) 9-octadecenoate
Constituent 8
Chemical structure
Reference substance name:
Zinc dilinoleate
EC Number:
235-870-2
EC Name:
Zinc dilinoleate
Cas Number:
13014-44-3
Molecular formula:
C36H62O4Zn
IUPAC Name:
zinc(II) 9,12-octadecdienoate
Test material form:
solid: bulk

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
female
Details on test animals or test system and environmental conditions:
Species and strain : NSam: Sprague-Dawley Rat
Microbiological grade : Specific Pathogen Free(SPF)
Sex : Female(nulliparous and non-pregnant)
Breeder : Samtako Bio Korea
(105, Seorang-ro, Osan-si, Gyeonggi-do, Republic of Korea)
Supplier : Young Bio Co., Ltd.
(388, Dunchon-daero, Jungwon-gu, Seongnam-si, Gyeonggi-do,
Republic of Korea)


Step Age(week old) Sex Number of animals

Animals at acquisition 8 Female 13
1st step administration 9 Female 3
2nd step administration 9 Female 3
3rd step administration 10 Female 3
4th step administration 10 Female 3

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
unchanged (no vehicle)
Doses:
The test substance was administered in single dosing at a dose level of 300 mg/kg b.w.(1st and 2nd step) and 2,000 mg/kg b.w.(3rd and 4th step).
No. of animals per sex per dose:
3
Control animals:
not specified
Details on study design:
3.1.2. Dose level

1st step The starting dose level was selected as 300 mg/kg body weight (b.w.) due to a lack of
toxicity information of the test substance.
2nd step After the 1st step dosing(before the 2nd step dosing), no dead animals were observed.
Thus, the 2nd step dose level was selected as 300 mg/kg b.w..
3rd step After the 2nd step dosing(before the 3rd step dosing), no dead animals were observed.
Thus, the 3rd step dose level was selected as 2,000 mg/kg b.w..
4th step After the 3rd step dosing(before the 4th step dosing), no dead animals were observed.
Thus, the 4th step dose level was selected as 2,000 mg/kg b.w..

3.2. Administration of Test Substance
3.2.1. Justification for route of administration
The oral route was selected to investigate the oral toxicity of test substance.
3.2.2. Dose frequency
Single administration
3.2.3. Dosage
The dose volume was set as 5 mL/kg b.w., and the dosage for each animal were calculated on the
basis of fasted body weight on the administration day.
3.2.4. Method
The animals were fasted for over-night(over 16 hours with water provided ad libitum) and orally
administered once by gavage using a feeding needle(gavage needle). Feed was provided
approximately 4 hours post-dosing.

Results and discussion

Effect levels
Key result
Sex:
female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat.
Mortality:
No mortality was observed in this study.
Clinical signs:
other:
Body weight:
other body weight observations
Remarks:
No body weight changes related to the test substance administration were observed in all animals in the 300 mg/kg b.w.(1st and 2nd step) and 2,000 mg/kg b.w.(3rd and 4th step) groups.
Gross pathology:
No gross lesions related to the test substance administration were observed in all animals in the 300 mg/kg b.w.(1st and 2nd step) and 2,000 mg/kg b.w.(3rd and 4th step) groups.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
This study was conducted to confirm the GHS category and LD50 cut-off value based on the acute toxicity of the test substance, Fatty acids, C8-18 and C18-unsatd., zinc salts, following a single oral administration to female Sprague-Dawley rats. The test substance was administered in a single dose at dose of 300 mg/kg b.w.(1st and 2nd step) and 2,000 mg/kg b.w.(3rd and 4th step). Three animals were used for each step. Mortality, clinical signs and body weights were observed for 14 days. Also, at the end of the 14-day observation period for each step, gross necropsy was performed.
No mortality was observed in this study.
No clinical signs were observed in the 300 mg/kg b.w.(1st and 2nd step) and 2,000 mg/kg b.w.(3rd and 4th step) groups.
No body weight changes related to the test substance administration were observed in all animals in the 300 mg/kg b.w.(1st and 2nd step) and 2,000 mg/kg b.w.(3rd and 4th step) groups.
No gross lesions related to the test substance administration were observed in all animals in the 300 mg/kg b.w.(1st and 2nd step) and 2,000 mg/kg b.w.(3rd and 4th step) groups.
As a result, the test substance, Fatty acids, C8-18 and C18-unsatd., zinc salts, was confirmed as GHS (Globally Harmonized System of Classification and Labelling of Chemicals) Category 5 and the oral LD50 cut-off was determined as greater than 2,000 mg/kg b.w. in this study.