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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 425 (Acute Oral Toxicity: Up-and-Down Procedure)
Qualifier:
according to guideline
Guideline:
EPA OPPTS 870.1100 (Acute Oral Toxicity)
GLP compliance:
yes (incl. QA statement)
Test type:
up-and-down procedure

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3,6,8-Pyrenetetrasulfonic acid, sodium salt (1:4)
EC Number:
626-424-1
Cas Number:
59572-10-0
Molecular formula:
C16H16O12S4.4Na
IUPAC Name:
1,3,6,8-Pyrenetetrasulfonic acid, sodium salt (1:4)

Test animals

Species:
rat
Strain:
Sprague-Dawley
Remarks:
Sprague-Dawley derived, albino
Sex:
female

Administration / exposure

Route of administration:
oral: gavage
Doses:
2000mg/kg
No. of animals per sex per dose:
5

Results and discussion

Effect levels
Key result
Sex:
female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Mortality:
All animals survived test substance administration
Clinical signs:
other: There were no signs of gross toxicity, adverse clinical effects, or abnormal behavior.
Gross pathology:
No gross abnormalities were noted for any of the animals when necropsied at the conclusion of the 14-day observation period.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
Under the conditions of this study, the acute oral LD50 of PTSA is greater than 2000 mg/kg of body weight in female rats.