Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
phototransformation in air
Type of information:
calculation (if not (Q)SAR)
Remarks:
estimated by calculation
Adequacy of study:
supporting study
Study period:
2011
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: QSAR calculation from Chemspider

Data source

Reference
Reference Type:
secondary source
Title:
EPIWIN AopWin v1.92 Calculation taken from "Chemspider Database"
Author:
ERM
Year:
2011
Report date:
2011

Materials and methods

Principles of method if other than guideline:
Method: other (calculated) AopWin v1.92
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
3-methylpentane-1,5-diol
EC Number:
224-709-1
EC Name:
3-methylpentane-1,5-diol
Cas Number:
4457-71-0
Molecular formula:
C6H14O2
IUPAC Name:
3-methylpentane-1,5-diol
Details on test material:
Substance grade, purity: not specified

Study design

Details on test conditions:
Sensitiser (for indirect photolysis): OH
Sensitiser concentration: 1,500,000 molecule/cm³

Results and discussion

Dissipation half-life of parent compound
DT50:
9 h
Test condition:
with OH concentration of 1.5E6 molecules/cm³

Any other information on results incl. tables

Rate constant (for indirect photolysis):  0.00000000001425 cm³/(molecule*sec)
Degradation in % (for indirect photolysis):  0.751 days (with 12 hour days)or 9 hours.

Applicant's summary and conclusion

Conclusions:
A half-life of 9 hours was calculated based on the calculated rate constant and OH radical concentration in atmosphere of 1.5E+6 molecules/cm3.