(3-chloroprop-1-enyl)benzene

Endpoint summary

Description of key information

• Acute toxicity: Oral

In an acute oral toxicity study in female Crl:WI (Han) (SPF) rats, following the acute toxic class method in accordance with the OECD Guideline 423 and EU Method B.1 tris, the LD50 was established to to exceed 2000 mg/kg body weight.

• Acute toxicity: Inhalation

No reliable acute toxicity study via the inhalation route was available. However, this endpoint is waived as specific data are available for the oral and dermal exposure routes, and, as a conservative approach, the substance is classified as Acute Toxicity via inhalation Category 1 (Fatal if inhaled H330) based on the high number of C&L notifications submitted for this hazard class, and the LC50 of 29mg/m³/4h mentioned in several sources. 

• Acute toxicity: Dermal

In an acute dermal toxicity study in male and female Crl:WI (Han) (SPF) rats, following the standard acute method according to OECD Guideline 402 and EC method B.3, the LD50 was established to exceed 2000 mg/kg body weight.

Key value for chemical safety assessment

Acute toxicity: via oral route

Link to relevant study records

Reference

Endpoint:

acute toxicity: oral

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 2016-05-26 to 2016-06-16

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method B.1 tris (Acute Oral Toxicity - Acute Toxic Class Method)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 870.1100 (Acute Oral Toxicity)

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test type:

acute toxic class method

Limit test:

no

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: A15JB2997
- Expiration date of the lot/batch: 2016-10-21
- Purity test date: No data

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature
- Stability under test conditions: No data. The test item was kept at room temperature for a maximum of 4 hours prior to dosing
- Solubility and stability of the test substance in the solvent/vehicle: No data
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium:

OTHER SPECIFICS:
correction factor: 1

Species:

rat

Strain:

Wistar

Sex:

female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: female rats (nulliparous and non-pregnant), Wistar strain Crl:WI (Han) (outbred, SPF-Quality); Charles River Deutschland, Sulzfeld, Germany
- Age at study initiation: approx. 9 weeks old
- Weight at study initiation: 159-181 g
- Fasting period before study: animals were deprived of food overnight prior to dosing and until 3-4 hours after administration of the test item. Water was available ad libitum.
- Housing: group housing of 3 animals per cage in labeled Makrolon cages (MIV type; height 18 cm.) containing sterilized sawdust as bedding material (Lignocel S 8-15, JRS - J.Rettenmaier & Söhne GmbH + CO. KG, Rosenberg, Germany) and paper as cage-enrichment (Enviro-dri, Wm. Lillico & Son (Wonham Mill Ltd), Surrey, United Kingdom).
- Diet (e.g. ad libitum): ad libitum, free access to pelleted rodent diet
- Water (e.g. ad libitum): ad libitum, free access to tap water.
- Acclimation period: at least 5 days before start of treatment under laboratory conditions.


ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18-24 °C
- Humidity (%): 40-70%
- Air changes (per hr): at least 10
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES: From: 2016-05-26 To: 2016-06-16

Route of administration:

oral: gavage

Vehicle:

unchanged (no vehicle)

Details on oral exposure:

MAXIMUM DOSE VOLUME APPLIED: 1.83 ml/kg

DOSAGE PREPARATION (if unusual):
- The test item was dosed undiluted as delivered by the Sponsor. The test item was kept at room temperature for a maximum of 4 hours prior to dosing. Based on the test item data provided by the Sponsor, it was considered that the test item remained stable during this relatively short time period.
- Adjustment was made for specific gravity of the vehicle. No correction was made for purity of the test item.

CLASS METHOD (if applicable)
- Rationale for the selection of the starting dose: The toxicity of the test item was assessed by stepwise treatment of groups of 3 females. The first group was treated at a dose level of 2000 mg/kg.

Doses:

2000 mg/kg (single dosage)

No. of animals per sex per dose:

3 females per dose (two subsequent treatment groups)

Control animals:

no

Details on study design:

- Duration of observation period following administration: 14 days (until day 15)
- Frequency of observations and weighing:
mortality/viability: twice daily;
body weights: days 1 (pre-administration), 8 and 15 and at death (if found dead);
clinical signs: at periodic intervals on the day of dosing (day 1) and once daily thereafter, until day 15. The signs were graded according to fixed scales and the time of onset, degree and duration were recorded: maximum grade 4: grading slight (1) to very severe (4); maximum grade 3: grading slight (1) to severe (3); maximum grade 1: presence is scored (1).
- Necropsy of survivors performed: yes, at the end of the observation period, all animals were sacrificed by oxygen/carbon dioxide procedure and subjected to necropsy. Descriptions of all internal macroscopic abnormalities were recorded.

Statistics:

No statistical analysis was performed.

Key result

Sex:

female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Mortality:

One animal was found dead on Day 2 in the first test group. No deaths occurred in the second test group.

Clinical signs:

other: Lethargy, flat posture, hunched posture, piloerection, ptosis, uncoordinated movements, decreased locomotor activity, abnormal gait, slow breathing, flat gait, hypotonia and/or lean appearance were noted for all animals between Days 1 and 3.

Body weight:

other body weight observations

Remarks:

The mean body weight gain shown by the surviving animals over the study period was considered to be similar to that expected for normal untreated animals of the same age and strain.

Gross pathology:

Watery-clear, dark red contents of the urinary bladder were found in the animal that died during the study, at macroscopic post mortem examination. Macroscopic examination of the surviving animals at termination did not reveal any abnormalities.

Interpretation of results:

Category 5 based on GHS criteria

Conclusions:

The oral LD50 value of JNJ-118872-AAA (T000749) in Wistar rats was established to exceed 2000 mg/kg body weight. Based on these results, according to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) of the United Nations (2015) (including all amendments), T000749 should be classified as: may be harmful if swallowed (Category 5) for acute toxicity by the oral route. T000749 does not have to be classified and has no obligatory labelling requirement for oral toxicity according to Regulation (EC) No 1272/2008.

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed

Dose descriptor:

LD50

Value:

2 000 mg/kg bw

Acute toxicity: via inhalation route

Link to relevant study records

Reference

Reference 1

Endpoint:

acute toxicity: inhalation

Type of information:

experimental study

Adequacy of study:

disregarded due to major methodological deficiencies

Study period:

no data

Reliability:

4 (not assignable)

Rationale for reliability incl. deficiencies:

documentation insufficient for assessment

Remarks:

No study report available for assessment

Species:

rat

Route of administration:

inhalation

Key result

Dose descriptor:

LC50

Effect level:

29 mg/m³ air

Based on:

not specified

Exp. duration:

4 h

Clinical signs:

other: see other findings

Other findings:

Behavioral: somnolence (general depressed activity)
Lungs, Thorax, or Respiration: Respiratory depression
Nutritional and Gross Metabolic: body temperature decrease
Autonomic Nervous System: smooth muscle relaxant (mechanism undefined, spasmolytic)
Immunological Including Allergic - increase in cellular immune response
Sense Organs and Special Senses (Eye): lacrimation, conjunctive irritation, corneal damage

Reference 2

Endpoint:

acute toxicity: inhalation

Data waiving:

other justification

Justification for data waiving:

other:

Endpoint conclusion

Endpoint conclusion:

no study available

Acute toxicity: via dermal route

Link to relevant study records

Reference

Endpoint:

acute toxicity: dermal

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From 2016-06-23 to 2016-07-07

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 402 (Acute Dermal Toxicity)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method B.3 (Acute Toxicity (Dermal))

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 870.1200 (Acute Dermal Toxicity)

Deviations:

no

Qualifier:

according to guideline

Guideline:

other: JMAFF Guidelines (2000), including the most recent revisions

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test type:

standard acute method

Limit test:

yes

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: A15JB2997
- Expiration date of the lot/batch: 2016-10-21
- Purity test date: No data

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: At room temperature
- Stability under test conditions: No data
- Solubility and stability of the test substance in the solvent/vehicle: No data

OTHER SPECIFICS:
correction factor: 1

Species:

rat

Strain:

Wistar

Sex:

male/female

Details on test animals or test system and environmental conditions:

TEST ANIMALS
- Source: Wistar strain Crl:WI (Han) (outbred, SPF-Quality); Charles River Deutschland, Sulzfeld, Germany
- Age at study initiation: Young adult animals (approx. 12 weeks old)
- Weight at study initiation: 320-380 g (males), 197-223 g (females)
- Housing: Individually housed in labeled Makrolon cages (MIII type, height 18 cm.) containing sterilized sawdust as bedding material (Lignocel S 8-15, JRS - J.Rettenmaier & Söhne GmbH + CO. KG, Rosenberg, Germany) and paper as cage-enrichment (Enviro-dri, Wm. Lillico & Son (Wonham Mill Ltd), Surrey, United Kingdom)
- Diet (e.g. ad libitum): ad libitum, free access to pelleted rodent diet
- Water (e.g. ad libitum): ad libitum, free access to tap water
- Acclimation period: at least 5 days before start of treatment under laboratory conditions. During the acclimatization period the animals were group housed in Makrolon cages (MIV type, height 18 cm)

ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18-24 °C
- Humidity (%): 40-70%
- Air changes (per hr): at least 10
- Photoperiod (hrs dark / hrs light): 12/12

IN-LIFE DATES: From 2016-06-23 To: 2016-07-07

Type of coverage:

semiocclusive

Vehicle:

unchanged (no vehicle)

Details on dermal exposure:

TEST SITE
- Area of exposure: on the back of the animal
- % coverage: approx. 10% of the total body surface, i.e. approx. 25 cm² for males and 18 cm² for females
- Type of wrap if used: surgical gauze patch (Surgy 1D), successively covered with aluminum foil and Coban elastic bandage. A piece of Micropore tape was additionally used for fixation of the bandages in females only.

REMOVAL OF TEST SUBSTANCE
- Washing (if done): after removal of dressing, the skin was cleaned of residual test item using tap water
- Time after start of exposure: 24 h

Duration of exposure:

24 h

Doses:

2000 mg/kg (single dosage)

No. of animals per sex per dose:

5

Control animals:

not specified

Details on study design:

Preparation of test item:
The test item was dosed undiluted as delivered by the Sponsor. The test item was kept at room temperature for a maximum of 4 hours prior to dosing. Based on the test item data provided by the Sponsor, it was considered that the test item remained stable during this relatively short time period. No correction was made for purity of the test item as the correction factor is 1. Adjustment was made for specific gravity of the vehicle.

Treatment of animals and application of test item:
Method: Dermal application. Test preparation was stirred on a magnetic stirrer during application.
Clipping: One day before exposure (Day -1) an area of approximately 5x7 cm on the back of each animal was clipped.

Frequency of dosing: Single dosage, on Day 1.

Observations:
Observation period: until day 15 after treatment
- Mortality/Viability: Twice daily.
- Body weights: Days 1 (pre-administration), 8 and 15.
- Clinical signs: At periodic intervals on the day of dosing (Day 1) and once daily thereafter, until Day 15. The time of onset, degree and duration were recorded and the symptoms graded according to fixed scales:
Maximum grade 4: grading slight (1) to very severe (4)
Maximum grade 3: grading slight (1) to severe (3)
Maximum grade 1: presence is scored (1).
- Necropsy At the end of the observation period, all animals were sacrificed by oxygen/carbon dioxide procedure and subjected to necropsy. Descriptions of all internal macroscopic abnormalities were recorded.

Statistics:

No statistical analysis was performed.

Key result

Sex:

male/female

Dose descriptor:

LD50

Effect level:

> 2 000 mg/kg bw

Based on:

test mat.

Mortality:

No mortality occurred.

Clinical signs:

other:

Body weight:

other body weight observations

Remarks:

The mean body weight gain during the observation period was within the range expected for rats used in this type of study.

Gross pathology:

No abnormalities were found at macroscopic post mortem examination of the animals.

Interpretation of results:

GHS criteria not met

Conclusions:

The dermal LD50 value of T000749 in Wistar rats was established to exceed 2000 mg/kg body weight. Based on these results, the substance does not have to be classified and has no obligatory labelling requirement for acute dermal toxicity according to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) of the United Nations (2015) (including all amendments) and Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures (including all amendments).

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed

Dose descriptor:

LD50

Value:

2 000 mg/kg bw

Additional information

• Acute oral toxicity:

An acute oral toxicity study with T000749 according to the acute toxic class method in female Crl:WI (Han) (SPF) rats (OECD guideline 423 and EU Method B.1 tris) was performed (WIL, 2016). Single dosages of 2000 mg/kg bw (2 subsequent groups each of 3 animals) were applied. The substance was dosed undiluted. The rats received a single oral dose of test item, and were observed during 14 days following administration. Lethality and viability were observed twice daily, and bodyweight was monitored at day 1 (prior to administration), 8 and 15. Clinical signs were observed at periodic intervals on the day of dosing (day 1) and once daily thereafter. Necropsy of survivors and macroscopic examination were also performed. Internal macroscopic abnormalities were recorded. 

At 2000 mg/kg, one animal was found dead on Day 2 in the first test group. No deaths occured in the second test group. Lethargy, flat posture, hunched posture, piloerection, ptosis, uncoordinated movements, decreased lo comotor activity, abnormal gait, slow breathing, flat gait, hypotonia and/or lean appearance were noted for all animals between Days 1 and 3. The mean body weight gain shown by the surviving animals over the study period was considered to be similar to that expected for normal untreated animals of the same age and strain. Watery-clear, dark red contents of the urinary bladder were found in the animal that died during the study, at macroscopic post mortem examination. Macroscopic examination of the surviving animals at termination did not reveal any abnormalities.

 

The oral LD50 value of JNJ-118872-AAA (T000749) in Wistar rats was established to exceed 2000 mg/kg body weight.

 

• Acute inhalation toxicity:

In addition to the oral route of exposure, for substances other than gases, the information mentioned under REACH section 8.5.2 to 8.5.3 shall be provided for at least one other exposure route (REACH Regulation, column 2 adaptation of Annex VIII). For this substance a key study is available for the dermal route of exposure. Therefore, an acute inhalation toxicity study should not be performed.  

No reliable data were available to decide on the classification for the inhalation route. However, as a conservative approach, the substance is classified as Acute Toxicity via inhalation Category 1 (Fatal if inhaled H330) based on the high number of C&L notifications submitted for this hazard class, and the LC50 of 29mg/m³/4h mentioned in several sources. 

 

 

• Acute dermal Toxicity:

An acute dermal toxicity study with T000749 according to the standard acute method in male and female Crl:WI (Han) (SPF) rats (OECD guideline 402 and EU Method B.3 was performed (Charles River, 2016). The substance was applied undiluted on a clipped area on the back at 2000 mg/kg bw. The test item was then wrapped with a surgical gauze patch (Surgy 1D), successively covered with aluminum foil and Coban elastic bandage. After 24 h hours of exposure remainings of the test item were washed-off. The animals were observed during 14 days. Lethality and viability were observed twice daily, and bodyweight was monitored at day 1 (prior to administration), 8 and 15. Clinical signs were observed at periodic intervals on the day of dosing (day 1) and once daily thereafter, until day 15. Necropsy of survivors and macroscopic examination were also performed. Internal macroscopic abnormalities were recorded. 

No mortality occurred. Clinical signs observed were: Chromodacryorrhoea (snout) was noted for two males and one female on Days 1 and 2. The mean body weight gain during the observation period was within the range expected for rats used in this type of study. No abnormalities were found at macroscopic post mortem examination of the animals.

The dermal LD50 value of JNJ-118872-AAA (T000749) in Wistar rats was established to exceed 2000 mg/kg body weight.

Justification for classification or non-classification

Based on the results showing an LD50 > 2000 mg/kg bw and according to the criteria laid down in Regulation (EC) No 1272/2008 on classification, labelling and packaging of substances and mixtures, JNJ-118872-AAA (T000749) does not have to be classified and has no obligatory labelling requirement for acute oral toxicity.

 

No reliable data were available to decide on the classification for the inhalation route. However, as a conservative approach, the substance is classified as Acute Toxicity via inhalation Category 1 (Fatal if inhaled H330) based on the high number of C&L notifications submitted for this hazard class, and the LC50 of 29mg/m³/4h mentioned in several sources. 

 

Based on the dermal LD50 exceeding 2000 mg/kg bw, JNJ-118872-AAA (T000749) does not have to be classified and has no obligatory labelling requirement for acute dermal toxicity according to the criteria laid down in Regulation (EC) No 1272/2008.