LHA585
LHA585 is a fluorescent probe targeting the lipid hydrogen abstraction process for the early detection of ferroptosis (Ferroptosis). Its detection mechanism relies on the reactivity of its own 4-phenyl-3-methylbut-2-enyl moiety with biologically relevant oxidative radicals, including peroxyl radicals (ROO·), alkoxyl radicals (RO·), hydroxyl radicals (HO·), and peroxynitrite anions (ONOO−); upon hydrogen abstraction from this structure, radical rearrangement and radical cleavage occur, releasing a xanthene radical which converts into a highly fluorescent rhodamine dye in biological environments, thereby achieving a fluorescence turn-on ratio of up to 360-fold. LHA585 is non-fluorescent in its native state, possesses excellent membrane permeability due to its non-polar property, and the rhodamine dye generated after oxidation diffuses into mitochondria. The excitation wavelength of LHA585 is 561 nm, and its emission wavelength ranges from 570 to 620 nm.
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- CAS No.: 3121511-17-6
- 화학식: C39H46N2O
- 분자량:558.80
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보관:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
제품 설명
In Vitro
Guide (The following is our recommended protocol. This protocol is for guidance only and should be modified according to your specific needs).
1. Stock Solution Preparation
1.1 Solvent: Phosphate buffer (50 mM, pH = 7.4) containing 10% MeCN.
1.2 Concentration recommendation: 5 μM.
3. Staining Procedure
3.1 Sample type:[1]
3.1.1 Adherent cells (HeLa cells, HT22 cells).
3.2 Incubation conditions: Incubate with 5 μM LHA585 for 10 min; excitation wavelength 561 nm, emission wavelength 570-620 nm.
3.3 Washing steps: No washing required (wash-free imaging).
4. Controls
4.1 Positive controls: Cells treated with ferroptosis inducers including erastin (10 μM, 8 h), FIN56 (5 μM, 10 h), RSL3 (2 μM, 8 h).
4.2 Negative control: Cells pretreated with Fer-1 (2 μM, 8 h) followed by erastin (10 μM, 8 h).
4.3 Blank control: Untreated cells.
5. Detection & Analysis
5.1 Instrument: Confocal microscope.
5.1.1 Ex = 561 nm, Em = 570-620 nm.
5.2 Result analysis:
5.2.1 Fluorescence intensity changes: Significant fluorescence turn-on (ca. 360-fold in solution) in ferroptosis-induced cells; fluorescence intensity increases dose-dependently with ferroptosis inducer concentration; fluorescence signal rises earlier (within reperfusion initiation) compared to gold-standard probes in OGD/R models.
5.2.2 Fluorescence localization: Generated fluorescent rhodamine dye localizes to mitochondria.
5.2.3 Color changes: Red fluorescence emission.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 3121511-17-6
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분자량 558.80
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화학식 C39H46N2O
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SMILES
C/C(CC1=CC=CC=C1)=C\CC2(C3=CC=CC=C3)C4=C(OC5=C2C=CC(CN(CC)CC)=C5)C=C(N(CC)CC)C=C4
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선적
Room temperature in continental US; may vary elsewhere.
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보관
Please store the product under the recommended conditions in the Certificate of Analysis.
순도&문서
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)