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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Well documented study report which meets basic scientific principles

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1978
Report date:
1987

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
BASF-Test to assess acute toxicity in mice after intraperitoneal substance application
GLP compliance:
no
Limit test:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Valeric acid
EC Number:
203-677-2
EC Name:
Valeric acid
Cas Number:
109-52-4
Molecular formula:
C5H10O2
IUPAC Name:
pentanoic acid
Details on test material:
- Name of test material (as cited in study report): Valeric acid, substance ID: 77/505
- Physical state: clear liquid
- Analytical purity: no data

Test animals

Species:
mouse
Strain:
NMRI
Sex:
male/female
Details on test animals or test system and environmental conditions:
TEST ANIMALS
- Source: Wiga
- Mean weight at study initiation: male: 30 g; female: 24 g
- Fasting period before study: no data
- Housing: groups of five
- Diet: ad libitum
- Water: Tap water ad libitum


ENVIRONMENTAL CONDITIONS
- Temperature (°C):
- Humidity (%):
- Air changes (per hr):
- Photoperiod (hrs dark / hrs light): 12/12

Administration / exposure

Route of administration:
intraperitoneal
Vehicle:
olive oil
Doses:
21.5, 100, 200, 464, 700, 2150 mg/kg bw
No. of animals per sex per dose:
5 males, 5 females (200 and 700 mg/kg bw)
2 males and 2 females all other dosing groups
Control animals:
no
Details on study design:
- Duration of observation period following administration: 14 days
- Frequency of observations: daily on working days
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, organ weights

Results and discussion

Effect levels
Sex:
male/female
Dose descriptor:
LD50
Effect level:
200 - 464 mg/kg bw
Mortality:
21.5 mg/kg dosing group: no death occurred
100 mg/kg dosing group: no death occurred
200 mg/kg dosing group: no death occurred
464 mg/kg dosing group: all animals died
700 mg/kg dosing group: all animals died within 7 days
2150 mg/kg dosing group: all animals died within 7 days
Clinical signs:
dyspnoea, apathy, abdominal position, staggering, spastic gait, exsiccosis, bad general condition
Body weight:
normal body weight gain
Gross pathology:
Organs without findings

Applicant's summary and conclusion