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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2006-05-09 to 2006-05-23
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
comparable to guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2006
Report date:
2006

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 420 (Acute Oral Toxicity - Fixed Dose Method)
Deviations:
yes
Remarks:
Non-GLP study
GLP compliance:
no
Test type:
fixed dose procedure
Limit test:
yes

Test material

1
Chemical structure
Reference substance name:
L-(+)-2,5-diaminopentanoic acid
EC Number:
221-678-6
EC Name:
L-(+)-2,5-diaminopentanoic acid
Cas Number:
3184-13-2
Molecular formula:
C5H12N2O2.ClH
IUPAC Name:
L-(+)-2,5-diaminopentanoic acid
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: Lot 05019

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: stable

Test animals

Species:
rat
Strain:
other: Crl: CD (SD)
Sex:
female
Details on test animals or test system and environmental conditions:
Age at time of dosing: 7 weeks

Administration / exposure

Route of administration:
oral: drinking water
Vehicle:
methylcellulose
Details on oral exposure:
VEHICLE
0.5 % methylcellulose

Doses:
2000 mg/kg b.w.
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations and weighing:
Observations: 10 min, 30 min, 1 h, 2 h, 4 h, then daily
Weighing: Before dosing, after 1 d, 3 d, 7 d, 14 d
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight

Results and discussion

Effect levels
Key result
Sex:
female
Dose descriptor:
LD50
Effect level:
> 2 000 mg/kg bw
Based on:
test mat. (total fraction)
Mortality:
No mortality occured.
Clinical signs:
other: No symptoms developed throughout the study period.
Gross pathology:
Necropsy findings: No changes attributable to the test item were observed.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
The substance is practically nontoxic when administered orally.
Executive summary:

L-(+)-2,5-diaminopentanoic acid was administered in a dose of 2000 mg/kg b.w. to female rats. No mortality occured. On other treatement related observations werde made.