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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Basic data given
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1955
Report date:
1955

Materials and methods

Principles of method if other than guideline:
To estimate the LD50 value, mice were administered the test substance intraperitoneally and kept for observation for 7 days. A solution of the test substance was prepared on a weight/volume basis. The concentrations were varied to allow administration of a constant volume of 0.015 mL/g bw.
GLP compliance:
no
Remarks:
performed prior to GLP
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
2-amino-2-methylpropane-1,3-diol
EC Number:
204-100-7
EC Name:
2-amino-2-methylpropane-1,3-diol
Cas Number:
115-69-5
Molecular formula:
C4H11NO2
IUPAC Name:
2-amino-2-methylpropane-1,3-diol
Details on test material:
- Name of test material (as cited in study report): R-9
- Lot/batch No.: 396658R-9

Test animals

Species:
mouse
Strain:
not specified
Sex:
not specified
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Weight at study initiation: 15 g, on average

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
other: A solution of the test substance with an unknown vehicle was prepared
Details on exposure:
A solution of the test substance was prepared on a weight/volume basis. The concentrations were varied to allow administration of a constant volume of 0.015 mL/g bw.
Doses:
100, 250, 500, 1000 and 2000 mg/kg bw
No. of animals per sex per dose:
10 per dose
Control animals:
not specified
Details on study design:
- Duration of observation period following administration: 7 days
Statistics:
The approximate LD50 doses were estimated by the method of Miller and Tainter, Proc. Soc. Exper. Biol. and Med., 1944; 57: 261.

Results and discussion

Effect levels
Sex:
not specified
Dose descriptor:
LD50
Effect level:
400 mg/kg bw
Based on:
test mat.
Remarks on result:
other: Range: 400 ± 40 mg/kg bw
Mortality:
In the 100, 250, 500, 1000 and 2000 mg/kg bw dose groups, the mortality was 0, 1, 7, 9 and 10, respectively (see table 1).

Any other information on results incl. tables

Table 1: Mortality per dose group administered the test substance

Dose (mg/kg)

Number of animals treated

Mortality

100

10

0/10

250

10

1/10

500

10

7/10

1000

10

9/10

2000

10

10/10

Applicant's summary and conclusion