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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Vapour pressure

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Administrative data

Endpoint:
vapour pressure
Type of information:
(Q)SAR
Adequacy of study:
weight of evidence
Study period:
2017-08-01
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 adequate and reliable documentation / justification
Justification for type of information:
1. SOFTWARE
OPEn saR App (US EPA, 2016)

2. MODEL (incl. version number)
OPERA v.1.02

3. SMILES OR OTHER IDENTIFIERS USED AS INPUT FOR THE MODEL
COC1=CC=C(C(=O)C2=CC=C(OC)C=C2O)C(O)=C1

4. SCIENTIFIC VALIDITY OF THE (Q)SAR MODEL
Please refer to the attached QMRF report

5. APPLICABILITY DOMAIN
Please refer to the attached QPRF report

Data source

Reference
Reference Type:
other: estimation software
Title:
Unnamed
Year:
2016

Materials and methods

Test guideline
Guideline:
other: REACH Guidance on QSAR R.6
Principles of method if other than guideline:
- Software tool(s) used including version: OPERA V1.02, PaDEL descriptors V2.21, MATLAB
- Model(s) used: OPEn saR App (QSAR model using PaDEL descriptors)
- Model description: see field 'Justification for non-standard information' and 'Attached justification'
- Justification of QSAR prediction: see field 'Justification for type of information' and 'Attached justification'
GLP compliance:
no
Remarks:
not applicable for QSAR predictions
Type of method:
other: QSAR prediction according to Venetian blinds method

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-dihydroxy-4,4'-dimethoxybenzophenone
EC Number:
205-027-3
EC Name:
2,2'-dihydroxy-4,4'-dimethoxybenzophenone
Cas Number:
131-54-4
Molecular formula:
C15H14O5
IUPAC Name:
2-(2-hydroxy-4-methoxybenzoyl)-5-methoxyphenol
Specific details on test material used for the study:
not applicable

Results and discussion

Vapour pressure
Key result
Test no.:
#1
Vapour pressure:
0 mm Hg
Remarks on result:
other: see "Remarks"
Remarks:
The vapour pressure was predicted to be 2.35e-09 mm Hg by the QSAR model OPERA V1.02 (US EPA, 2016). No data are available for Temperature.

Applicant's summary and conclusion

Conclusions:
A vapour pressure of 2.35e-09 mm Hg was calculated for 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone by the QSAR tool OPERA V1.02 (US EPA, 2016).
Executive summary:

The vapour pressure was calculated for 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone using the QSAR tool OPERA V1.02. The vapour pressure was calculated to be 2.35e-09 mm Hg.