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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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: other routes
Type of information:
experimental study
Adequacy of study:
other information
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Documentation insufficient for assessment

Data source

Referenceopen allclose all

Reference Type:
publication
Title:
Dipole Moments and Pharmacological Activity of Cyclic Ureas, Cyclic Thioureas, and the N,N'-Dimethylated Compounds
Author:
Lien, E.J. & Kumler, W.D.
Year:
1968
Bibliographic source:
J. Med. Chem. 11: 214-219
Reference Type:
publication
Title:
Structural Requirements for CNS Activities and Toxicities of Cyclic Ureas and Thioureas
Author:
Lien et al.
Year:
1982
Bibliographic source:
J. Taiwan Pharm. Assoc. 34(1), 46-52
Reference Type:
publication
Title:
No information
Author:
Miller, L.C. & Tainter, M.L.
Year:
1944
Bibliographic source:
Proc. Soc. Exptl. Biol. Med. 57, 261

Materials and methods

GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Tetrahydro-1,3-dimethyl-1H-pyrimidin-2-one
EC Number:
230-625-6
EC Name:
Tetrahydro-1,3-dimethyl-1H-pyrimidin-2-one
Cas Number:
7226-23-5
Molecular formula:
C6H12N2O
IUPAC Name:
tetrahydro-1,3-dimethyl-1H-pyrimidin-2-one

Test animals

Species:
mouse

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
other: 0.2% water solution was used for dosage <= 100 mg/kg; 2% solution was used for dosage of 300 and 1000 mg/kg. For dosage > 1000 mg/kg, higher concentration and only two mice were used (limited amount of test substance)

Results and discussion

Effect levels
Dose descriptor:
LD50
Effect level:
1 300 mg/kg bw
Remarks on result:
other: LD50 was obtained by the graphic calculation of Miller and Tainter

Applicant's summary and conclusion