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Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Type of information:
(Q)SAR
Adequacy of study:
key study
Study period:
19 April 2012
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
Remarks:
Acceptable, well-documented study report which meets basic scientific principles.
Justification for type of information:
results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification

Data source

Referenceopen allclose all

Reference Type:
other: software
Title:
EPI Suite(TM), Version 4.1
Author:
US Environmental Protection Agency
Year:
2011
Bibliographic source:
Online: http://www.epa.gov/oppt/exposure/pubs/episuite.htm, accessed: April 2012
Reference Type:
study report
Title:
Unnamed
Year:
2012
Report date:
2012

Materials and methods

Principles of method if other than guideline:
Calculated limit value according to column 2 in Annex VII of Regulation (EC) No 1907/2006 (melting point - here: decomposition temperature -between 200 °C and 300 °C, see section 4.2).
Type of method:
other: estimate

Test material

Constituent 1
Chemical structure
Reference substance name:
Diethyl 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate]
EC Number:
228-788-3
EC Name:
Diethyl 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-1H-pyrazole-3-carboxylate]
Cas Number:
6358-87-8
Molecular formula:
C36H28Cl2N8O6
IUPAC Name:
diethyl 4,4'-[(3,3'-dichlorobiphenyl-4,4'-diyl)didiazene-2,1-diyl]bis(5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylate)

Results and discussion

Vapour pressure
Temp.:
25 °C
Vapour pressure:
< 0 Pa

Any other information on results incl. tables

Software output:

Experimental Database Structure Match: no data

SMILES : O=C5(C(N=Nc4(c(CL)cc(c3(cc(CL)c(N=NC2(C(C(=O)(OCC))=NN(c1(ccccc1))C2(

        =O)))cc3))cc4))C(C(=O)(OCC))=NN5c6(ccccc6))

CHEM  : 1H-Pyrazole-3-carboxylic acid, 4,4'-[(3,3'-dichloro[1,1'-biphenyl]-4,

        4'-diyl)bis(azo)]bis[4,5-dihydro-5-oxo-1-phenyl-,

MOL FOR: C36 H28 CL2 N8 O6

MOL WT : 739.58

------------------------ SUMMARY MPBPWIN v1.43 --------------------

Boiling Point: 915.67 deg C (Adapted Stein and Brown Method)

Melting Point: 349.84 deg C (Adapted Joback Method)

Melting Point: 349.84 deg C (Gold and Ogle Method)

Mean Melt Pt : 349.84 deg C (Joback; Gold,Ogle Methods)

 Selected MP: 349.84 deg C (Weighted Value)

Vapor Pressure Estimations (25 deg C):

 (Using BP: 915.67 deg C (estimated))

 (Using MP: 349.84 deg C (estimated))

   VP: 6.36E-046 mm Hg (Antoine Method)

     : 0 Pa (Antoine Method)

   VP: 4.02E-023 mm Hg (Modified Grain Method)

     : 5.35E-021 Pa (Modified Grain Method)

   VP: 2.22E-022 mm Hg (Mackay Method)

     : 2.96E-020 Pa (Mackay Method)

 Selected VP: 4.02E-023 mm Hg (Modified Grain Method)

            : 5.35E-021 Pa (Modified Grain Method)

 Subcooled liquid VP: 2.06E-019 mm Hg (25 deg C, Mod-Grain method)

                    : 2.74E-017 Pa (25 deg C, Mod-Grain method)

Interpretation:

On the basis of the vapour pressure of 5.35 x 10-21 Pa selected in the software output, a limit value of <0.000001 Pa is chosen.

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the submission substance is estimated to be far below 0.000001 Pa.
Executive summary:

The vapour pressure of the submission substance was estimated by calculation in accordance with column 2 in Annex VII of Regulation (EC) No 1907/2006 by a calculation method recommended by the Guidance on Information Requirements and Chemical Safety Assessment (chapter R.7.1.5.3), MPBPVP of the EPI Suite (TM) software by the US Environmental Protection Agency (EPA, 2011).

The calculated vapour pressure at 25 °C is far below the chosen limit value of 0.000001 Pa.