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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
acute toxicity: oral
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Study well documented, meets generally accepted scientific principles, acceptable for assessment.

Data source

Reference
Reference Type:
publication
Title:
Unnamed
Year:
2009

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
No information on the guideline.
GLP compliance:
not specified
Remarks:
No information on the publication
Test type:
acute toxic class method
Limit test:
yes

Test material

Constituent 1
Chemical structure
Reference substance name:
Trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate
EC Number:
217-699-5
EC Name:
Trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate
Cas Number:
1934-21-0
Molecular formula:
C16H12N4O9S2.3Na
IUPAC Name:
trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate
Test material form:
solid: particulate/powder
Details on test material:
No data

Test animals

Species:
mouse
Strain:
Swiss
Sex:
not specified
Details on test animals or test system and environmental conditions:
Supplier: C.E.R Janvier, Laval, FranceAge: 6 weeksRats were caged singly in plastic cage and housed in fully air-conditioned rooms with temperature = 19-23°C and humidity continuosly recorded. Animals were subjected to 12 hours artificial light and 12 hours darkness in each 24 hours period. Feeding: ad libitum coomercial pellet diet (A04, SAFE, Villemoisson, France)Drinking water: tap water ad libitumAcclimatization: one week

Administration / exposure

Route of administration:
oral: gavage
Vehicle:
water
Remarks:
doubly distilled
Details on oral exposure:
The tested substance was dissolved in waterPositive control: DAB dimethylaminoazobenzene dissolved in olive oilNegative control: water and oil
Doses:
20, 200 and 1000 mg/kg bw
No. of animals per sex per dose:
7 animals per group
Control animals:
no
Details on study design:
Mice were given a double dose of tartrazine, 24 h apart and were killed 24 hours after the last dosing.

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
> 1 000 mg/kg bw
Mortality:
No mortality occurred
Clinical signs:
other: No data
Gross pathology:
No data

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The tested item was found to be non-toxic for oral exposure with a LD50 > 1000 mg/kg bw.
Executive summary:

The acute oral toxicity test of Acid Yellow 23 in mice showed a LD50 value was > 1000 mg/kg.