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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1993

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
yes
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-dithiodi(benzoic acid)
EC Number:
204-352-8
EC Name:
2,2'-dithiodi(benzoic acid)
Cas Number:
119-80-2
Molecular formula:
C14H10O4S2
IUPAC Name:
2-[(2-carboxyphenyl)disulfanyl]benzoic acid
Test material form:
other: Solid
Details on test material:
The test material had a purity of 75.7%

Test animals

Species:
rat
Strain:
Wistar
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Barriered Animal Breeding unit
- Age at study initiation: Young adults
- Weight at study initiation: 259-315g male, 215-233g female
- Fasting period before study: 24h
- Housing: suspended stainless steel cages
- Diet (e.g. ad libitum): ad libitum
- Water (e.g. ad libitum): ad libitum
- Acclimation period: 6 days

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 19-23
- Humidity (%): 40-70
- Air changes (per hr): 25-30
- Photoperiod (hrs dark / hrs light): 12/12

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
corn oil
Details on oral exposure:
-dose volume: 10ml/kg
Doses:
2000 mg/kg
No. of animals per sex per dose:
5 males and 5 females
Control animals:
no
Details on study design:
-observations: 2h, 3-7h post dose, daily up to day 15
-weighing: day before dosing, day of dosing, days 3, 6, 8, 15
-termination: all animals sacrifice on day 15 then subject to macroscopic post mortem examination

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: Signs of diarrhoea were noted in 2 animals
Gross pathology:
There were no macroscopic abnormalities

Applicant's summary and conclusion

Interpretation of results:
not classified
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
DTBA has an oral LD50 > 2000 mg/kg