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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Acute Toxicity: oral

Currently viewing:

Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
weight of evidence
Study period:
1974
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study without detailed documentation

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1974
Report date:
1974

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:
7-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-4-hydroxy-3-[(4-methoxy-2-sulphophenyl)azo]naphthalene-2-sulphonic acid, sodium salt
EC Number:
286-839-5
EC Name:
7-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-4-hydroxy-3-[(4-methoxy-2-sulphophenyl)azo]naphthalene-2-sulphonic acid, sodium salt
Cas Number:
85391-83-9
Molecular formula:
C21H14ClF2N5O8S2.xNa
IUPAC Name:
7-[(5-chloro-2,6-difluoro-4-pyrimidinyl)amino]-4-hydroxy-3-[(4-methoxy-2-sulphophenyl)azo]naphthalene-2-sulphonic acid, sodium salt
Test material form:
solid
Details on test material:
Reactive Red 123

Test animals

Species:
rat
Strain:
Wistar
Sex:
female

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
peanut oil
Details on oral exposure:
MAXIMUM DOSE VOLUME APPLIED: 20 - 30 mL/kg bw
Doses:
5, 6, 7, 8 and 9 g/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
Statistics:
Probit analysis

Results and discussion

Effect levelsopen allclose all
Key result
Sex:
female
Dose descriptor:
LD50
Effect level:
ca. 4 776 mg/kg bw
Based on:
act. ingr.
Sex:
female
Dose descriptor:
LD50
Effect level:
7 024 mg/kg bw
Based on:
test mat.
95% CL:
6 478 - 7 568
Mortality:
mortality 3 hours to 3 days after application
Clinical signs:
uncoordinated movements, abdominal position, sedation

Any other information on results incl. tables

 dose

[g/kg bw]

 mortality

[dead/tested animals]

 5  0/10
 6  2/10
 7  5/10
 8  7/10
 9  10/10

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The LD50 to female rats (oral, gavage) was determined to be 4773 mg/kg bw (act. ingr.). The substance is not classifiable according to CLP criteria.