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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Administrative data

Endpoint:
acute toxicity: dermal
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable, well-documented publication which meets basic scientific principles.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1978
Report date:
1978

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 402 (Acute Dermal Toxicity)
GLP compliance:
no
Test type:
standard acute method
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
3,3'-iminodi(propylamine)
EC Number:
200-261-2
EC Name:
3,3'-iminodi(propylamine)
Cas Number:
56-18-8
Molecular formula:
C6H17N3
IUPAC Name:
bis(3-aminopropyl)amine
Details on test material:
- Analytical purity: 99%

Test animals

Species:
rat
Strain:
Sprague-Dawley
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Firma WIGA (Sulzfeld)
- Weight at study initiation: male animals 140g, female animals 130g
- all animals are healthy with unharmed skin

Administration / exposure

Type of coverage:
occlusive
Vehicle:
olive oil
Details on dermal exposure:
TEST SITE
- Area of exposure: 5 cm2
- Type of wrap if used: aluminium foil fixed with stickytape

REMOVAL OF TEST SUBSTANCE
- Washing: with warm water or water/lutrol mixture
- Time after start of exposure: 24 hours

TEST MATERIAL
- Amount(s) applied: 200, 400 and 640 mg/kg
- Concentration: 25% and 50%
Duration of exposure:
24 h
Doses:
200, 400 and 640 mg/kg
No. of animals per sex per dose:
5
Control animals:
no
Details on study design:
- Duration of observation period following administration: 21 days
- Frequency of observations and weighing: 1 h, 1, 2, 8 , 14 and 21 days
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
200 - 400 mg/kg bw
Based on:
test mat.
Mortality:
200 mg/kg; none of the animals died after 14 days
400 mg/kg; 3/5 males and 5/5 females after 21 days
640 mg/kg: all animals died after 24 h
Clinical signs:
other: Apathy, 24 hours after application necrosis was observed on all animals
Gross pathology:
Diseased animals
400-640 mg/kg: dilation and acute congestion hyperaemia of the heart, obvious almost infarctious bloody lungs
640 mg/kg: bright kidneys

Euthanized animals
No abnormal findings

Applicant's summary and conclusion

Executive summary:

In a dermal toxicity study, comparable to OECD 402, dipropylenetriamine was applied in olive oil occlusively at single doses of 200 to 640 mg/kg to Sprague-Dawley rats (5/sex/dose).

The LD50 falls between 200 and 400 mg/kg bw.