Registration Dossier
Registration Dossier
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EC number: 257-843-4 | CAS number: 52315-75-0
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- calculation (if not (Q)SAR)
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- accepted calculation method
Data source
Reference
- Reference Type:
- other: unpublished calculation
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The photodegradation of the test item in air by reaction with OH radicals was calculated using EPIWIN v4.11, AOPWIN v1.92
- GLP compliance:
- no
Test material
- Reference substance name:
- N6-(1-oxododecyl)-L-lysine
- EC Number:
- 257-843-4
- EC Name:
- N6-(1-oxododecyl)-L-lysine
- Cas Number:
- 52315-75-0
- Molecular formula:
- C18H36N2O3
- IUPAC Name:
- N6-(1-oxododecyl)-L-lysine
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
- Details on test material:
- - Name of test material (as cited in study report): Acylglycinate GCK-11-T
- Physical state: White to pale yellow powder, a slightly characteristic odor
- Lot/batch No.: 10825
- Expiration date of the lot/batch: August 25, 2014
- Storage condition of test material: Dark and cool place, protected from light
- ThoD: 2.060 mg O2/mg
Constituent 1
Study design
- Estimation method (if used):
- PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 1.5 x 10E6 OH/cm³
- Degradation rate constant: 69.1625 x 12 cm³/molecule x sec10E-
- Temperature for which rate constant was calculated: 25°C
- Computer programme: EPIWIN v4.11, AOPWIN v1.92
Results and discussion
% Degradation
- Key result
- % Degr.:
- 50
- Sampling time:
- 1.856 h
- Test condition:
- 25°C
Degradation rate constant
- Reaction with:
- OH radicals
- Rate constant:
- 0 cm³ molecule-1 s-1
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- Lauroyl L-lysine was photodegraded in air by reaction with OH radicals by 50% within 1.856 h.
- Executive summary:
The photodegradation of the test item in air by reaction with OH radicals was calculated using EPIWIN v4.11, AOPWIN v1.92. Based on the reaction rate constant k=69.1625 x 10E-12 cm³/molecule x sec and an OH radical concentration of 1.5 x 10E6 OH/cm³ a half-life time t1/2 of 1.856 h was calculated.
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