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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Study period:
Oct 1976
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1976
Report date:
1976

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Principles of method if other than guideline:
- Principle of test: oral
- Short description of test conditions: media for application: water; 10 rats per sex and dose; observation time: 14 days
- Parameters analysed / observed: intoxication symptoms, mortality
GLP compliance:
no
Test type:
standard acute method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium 2,2'-[(9,10-dihydro-5,8-dihydroxy-9,10-dioxo-1,4-anthrylene)diimino]bis[5-tert-butylbenzenesulphonate]
EC Number:
280-116-8
EC Name:
Disodium 2,2'-[(9,10-dihydro-5,8-dihydroxy-9,10-dioxo-1,4-anthrylene)diimino]bis[5-tert-butylbenzenesulphonate]
Cas Number:
83006-67-1
Molecular formula:
C34H34N2O10S2.2Na
IUPAC Name:
Disodium 2,2'-[(9,10-dihydro-5,8-dihydroxy-9,10-dioxo-1,4-anthrylene)diimino]bis[5-tert-butylbenzenesulphonate]
Test material form:
solid
Details on test material:
Acid Green 81

Test animals

Species:
rat
Strain:
Wistar
Remarks:
TNO/W74
Sex:
male
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: breeder: Winkelmann; Borchen
- Age at study initiation: 9 weeks
- Weight at study initiation: 150 - 200g
- Fasting period before study: 16 hours before application and 4 hours after application
- Housing: Makrolon cage type III (groups of 5 animals)
- Diet (e.g. ad libitum): Altromin R 1324, ad libitum
- Water (e.g. ad libitum): tap water, ad libitum

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 22 +/- 2°C
- Humidity (%): 50 +/- 10%
- Photoperiod (hrs dark / hrs light): 12h/12h (light from 6 am to 6pm)

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Details on oral exposure:
DOSAGE PREPARATION: the test item was solved at ambient temperature in tap water.
Doses:
5000 mg/kg bw
No. of animals per sex per dose:
10
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing: day of application: multiple observations; during 14 days observation: twice per working day, once on weekend and holiday; weekly weighing
- Necropsy of survivors performed: no
- Other examinations performed: clinical signs, body weight

Results and discussion

Effect levels
Key result
Sex:
male
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Remarks on result:
not determinable due to absence of adverse toxic effects
Mortality:
no mortality
Clinical signs:
no clinical signs
Body weight:
not affected

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The LD50 for oral (gavage) toxicity to male rats was determined to be > 5000 mg/kg bw. The substance is not classifiable according to CLP criteria.