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Administrative data

Endpoint:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Acceptable calculation method

Data source

Reference
Reference Type:
other: Mackay calculation
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Model:
calculation according to Mackay, Level I
Calculation programme:
Level I Version 3.0
Release year:
2 004
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
1,8-diazabicyclo[5.4.0]undec-7-ene
EC Number:
229-713-7
EC Name:
1,8-diazabicyclo[5.4.0]undec-7-ene
Cas Number:
6674-22-2
Molecular formula:
C9H16N2
IUPAC Name:
2,3,4,6,7,8,9,10-octahydropyrimido[1,2-a]azepine

Study design

Test substance input data:
The following physicochemical properties of the substance were used to calculate the distribution:

- Molar mass: 152.24 g/mol
- Data temperature: 25 °C
- Water solubility: 1.0E+06 g/m³ (measured @23°C; BASF, 2013; report no. 11L00314)
- Vapour pressure: 2.67 Pa (@ 25 °C, measured; BASF AG, 2013; report no. 11L00314)
- log Pow: -2.2 (@25°C, pH 7.0; BASF AG, 1989; report no. 110187/01)
- Melting point: 40.59°C (MPBPVP v1.43 of EPI Suite v4.10)
- Henry´s law constant: 4.06E-04 Pa*m³/mol (calculated by Mackay Level I)
Environmental properties:
Volume Density Org. C Fish lipid
(m³) (kg/m³) (g/g) (g/g)
air 6.0E+09 1.21*
water 7.0E+06 1000
soil 45000 1500 0.02
sediment 21000 1300 0.05
susp. part. 35.0 1500 0.167
fish 7.0 1000 0.05
aerosole 0.120 1500

* 1.21 kg/m³ at data temperature of 20 °C; 1.19 at data temperature 25 °C

Results and discussion

Percent distribution in media

Water (%):
100

Any other information on results incl. tables

Over time, the uncharged substance will preferentially distribute into the compartment water (100%).

Applicant's summary and conclusion