Registration Dossier

Administrative data

Endpoint:
phototransformation in air
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Scientifically acceptable method

Data source

Reference
Reference Type:
other: EPIWIN calculation
Title:
Unnamed
Year:
2016
Report Date:
2016

Materials and methods

Principles of method if other than guideline:
Calculation using SRC AOP v1.92
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid

Study design

Estimation method (if used):
PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 1500000 molecules/cm3
- Degradation rate constant: 34.5249 E-12 cm3/molecules*s
- Computer programme: SRC AOP v1.92
- Other: assuming a 12-hour day

Results and discussion

Dissipation half-life of parent compound
DT50:
1.09 d
Test condition:
The substance is within the applicability domain of the models.
Degradation rate constant
Reaction with:
OH radicals
Rate constant:
0 cm³ molecule-1 s-1

Any other information on results incl. tables

AOP Program (v1.92) Results:

===========================

SMILES : n1cccc(C(=O)O)c1C2=NC(C)(C(C)C)C(=O)N2

CHEM : Imazapyr

MOL FOR: C13 H15 N3 O3

MOL WT : 261.28

------------------- SUMMARY (AOP v1.92): HYDROXYL RADICALS (25 deg C) --------

Hydrogen Abstraction = 8.4310 E-12 cm3/molecule-sec

Reaction with N, S and -OH = 6.0200 E-12 cm3/molecule-sec

Addition to Triple Bonds = 0.0000 E-12 cm3/molecule-sec

Addition to Olefinic Bonds = 0.0000 E-12 cm3/molecule-sec

**Addition to Aromatic Rings = 0.3018 E-12 cm3/molecule-sec

Addition to Fused Rings = 0.0000 E-12 cm3/molecule-sec

OVERALL OH Rate Constant = 14.7528 E-12 cm3/molecule-sec

HALF-LIFE = 1.088 Days (24-hr day; 0.5E6 OH/cm3)

HALF-LIFE = 26.101 Hrs

........................ ** Designates Estimation(s) Using ASSUMED Value(s)

------------------- SUMMARY (AOP v1.91): OZONE REACTION (25 deg C) -----------

****** NO OZONE REACTION ESTIMATION ******

(ONLY Olefins and Acetylenes are Estimated)

Applicant's summary and conclusion