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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
other: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Remarks:
The test was conducted by means of Read Across approach. Further information was attached at section 13

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1979
Report date:
1979

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 401 (Acute Oral Toxicity)
Version / remarks:
only two doses used
GLP compliance:
no
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Reference substance name:
Acid Black 071 - Similar Substance 01
IUPAC Name:
Acid Black 071 - Similar Substance 01
Test material form:
solid: particulate/powder

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female

Administration / exposure

Route of administration:
oral: unspecified
Vehicle:
CMC (carboxymethyl cellulose)
Details on oral exposure:
suspension with 0.5% CMC in water
15-20h before application no food was administered
Doses:
2150 and 5000 mg/kg
No. of animals per sex per dose:
5 males and 5 females at 2150 mg/kg
5 males and 5 females at 5000 mg/kg
Details on study design:
Obervation period: 14 days

Results and discussion

Effect levelsopen allclose all
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 5 000 mg/kg bw
Based on:
test mat.
Sex:
male/female
Dose descriptor:
LD50
Effect level:
> 2 500 mg/kg bw
Based on:
act. ingr.
Mortality:
no mortality was observed for both male and females at each dose up to 14 days of observation
Clinical signs:
Black faeces and diahrrea were observed at 5000 mg/kg bw
Body weight:
weight gain was observed for both males and females at each dose up to 14 day of observation

Applicant's summary and conclusion

Interpretation of results:
other: CLP criteria not met
Conclusions:
Under the experimental conditions LD50 > 5000 mg/kg bw
Executive summary:

The substance was tested for acute oral toxicity following a guideline similar to OECD 401 wiht only two doses tested. Male and females were adminsiterd 2150 and 5000 mg/kg bw and observed up to 14 days, and no martality was observed. The LD50 under the experimental conditions is 5000 mg/kg bw.