Dibenzo[b,f]cyclohepten-1-one

Short-term toxicity to fish

Link to relevant study record(s)

Reference

Endpoint:

short-term toxicity to fish

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Justification for type of information:

Data is from J-CHECK authoritative database

Qualifier:

according to guideline

Guideline:

OECD Guideline 203 (Fish, Acute Toxicity Test)

Principles of method if other than guideline:

These tests are conducted based on OECD-GLP standard and OECD test guidelines.

GLP compliance:

not specified

Specific details on test material used for the study:

- Name of test material (as cited in study report): 1H-dibenzo[a,d][7]annulen-1-one
- Molecular formula (if other than submission substance): C15H10O
- Molecular weight (if other than submission substance): 206.243 g/mol
- Smiles notation (if other than submission substance): c12c(ccc3c(c1=O)cccc3)cccc2
- InChI: 1S/C15H10O/c16-15-13-7-3-1-5-11(13)9-10-12-6-2-4-8-14(12)15/h1-10H
- Substance type: Organic
- Physical state: Solid

Analytical monitoring:

not specified

Vehicle:

not specified

Test organisms (species):

other: Fish

Details on test organisms:

No data available

Test type:

not specified

Water media type:

freshwater

Total exposure duration:

96 h

Hardness:

No data available

Test temperature:

No data available

pH:

No data available

Dissolved oxygen:

No data available

Salinity:

No data available

Nominal and measured concentrations:

2.5 mg/L

Details on test conditions:

No data available

Reference substance (positive control):

not specified

Key result

Duration:

96 h

Dose descriptor:

LC50

Effect conc.:

> 2.5 mg/L

Nominal / measured:

meas. (not specified)

Conc. based on:

test mat.

Basis for effect:

mortality (fish)

Validity criteria fulfilled:

not specified

Conclusions:

Short term toxicity to fish study was carried out for 96 hrs. according to OECD Guideline 203 (Fish, Acute Toxicity Test). For chemical 1H-dibenzo[a,d][7]annulen-1-one (Cas no. 2222-33-5), based on effect on mortality of the fish, the 96 hr LC50 value was determined to be >2.5 mg/l.

Executive summary:

Short term toxicity to fish study was carried out for 96 hrs. The study was performed according to OECD Guideline 203 (Fish, Acute Toxicity Test). The study was based on the effects of the test compound 1H-dibenzo[a,d][7]annulen-1-one on fish in fresh water system. Based on effect on mortality of the test organism fish, the 96 hr LC50 value was determined to be >2.5 mg/l. Thus, based on the LC50 value, it can be concluded that the substance 1H-dibenzo[a,d][7]annulen-1-one can be considered as toxic to fish and thus can be classified as aquatic acute category 2 as per the CLP classification criteria.

Description of key information

Short term toxicity to fish study was carried out for 96 hrs. according to OECD Guideline 203 (Fish, Acute Toxicity Test). For the test chemical, 1H-dibenzo[a,d][7]annulen-1-one (Cas no. 2222-33-5), the 96 hr LC50 value was determined to be >2.5 mg/l based on mortality effects observed in fish.

Key value for chemical safety assessment

Fresh water fish

Fresh water fish

Effect concentration:

2.5 mg/L

Additional information

Short term toxicity to fish study was carried out for 96 hrs. The study was performed according to OECD Guideline 203 (Fish, Acute Toxicity Test). The study was based on the effects of the test compound 1H-dibenzo[a,d][7]annulen-1-one on fish in fresh water system. Based on effect on mortality of the test organism fish, the 96 hr LC50 value was determined to be >2.5 mg/l. Thus, based on the LC50 value, it can be concluded that the substance 1H-dibenzo[a,d][7]annulen-1-one can be considered as toxic to fish and thus can be classified as aquatic acute category 2 as per the CLP classification criteria.