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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1972
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:
1972
Report date:
1972

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
GLP compliance:
no
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Disodium [(9,10-dihydro-9,10-dioxo-1,4-anthrylene)bis[imino[3-isopropylpropane-1,3-diyl]]]bis(benzenesulphonate)
EC Number:
276-822-0
EC Name:
Disodium [(9,10-dihydro-9,10-dioxo-1,4-anthrylene)bis[imino[3-isopropylpropane-1,3-diyl]]]bis(benzenesulphonate)
Cas Number:
72749-90-7
Molecular formula:
C40H46N2O8S2.2Na
IUPAC Name:
Disodium [(9,10-dihydro-9,10-dioxo-1,4-anthrylene)bis[imino[3-isopropylpropane-1,3-diyl]]]bis(benzenesulphonate)
Test material form:
solid: particulate/powder
Details on test material:
Acid Blue 221

Test animals

Species:
rat
Strain:
Wistar
Sex:
male
Details on test animals or test system and environmental conditions:
no data

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
peanut oil
Details on oral exposure:
Application volume: 20 to 30 mL/kg bw
Doses:
6, 7, 8, 9 and 10 g/kg bw
No. of animals per sex per dose:
10 males/dose group
Control animals:
yes
Details on study design:
- Duration of observation period following administration: 14 days
Statistics:
Probit-Analyse (Fink und Hund, Arzneimittelforsch. 15, 1965, 624)

Results and discussion

Effect levels
Key result
Sex:
male
Dose descriptor:
LD50
Effect level:
7 646 mg/kg bw
Based on:
test mat.
95% CL:
6 731 - 8 488
Mortality:
mortality occured within 7h to 3 days after application
Clinical signs:
hypoactivity, prone position, diarrhea, piloerection
Body weight:
no data
Gross pathology:
no data

Any other information on results incl. tables

 dose

[g/kg bw]

dead /treated animals 

 6

2/10 

 7

3/10 

 8

5/10 

 9

9/10 

 10 8/10 

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The LD 50 for male wistar rates was determined to be 7646 mg/kg bw under the conditions of the test. The substance is not classifiable according to CLP criteria.