60640-98-4

Upstream product

• 41060-20-2 2,4-dimethoxy-7-hydroxy-9,10-dihydrophenanthrene 
• 537-42-8 3,5-dimethoxy-4'-hydroxy-trans-stilbene 
• 17213-57-9 3,5-dimethoxybenzoyl chloride 
• 104667-16-5 6-Hydroxy-2,4-dimethoxy-9,10-dihydro-phenanthren-tosylat 
• 92582-46-2 2-(3,5-dimethoxy-benzoyl)-3-oxo-butyric acid ethyl ester 
• 2150-37-0 methyl 3,5-dimethoxybenzoate 
• 93729-76-1 6-Nitro-2.4-dimethoxy-phenanthren-carbonsaeure-⁽¹⁰⁾-methylester 
• 17103-70-7 4-(3,5-dimethoxy-phenyl)-4-oxo-butyric acid 
• 97025-16-6 3-(3,5-dimethoxyphenyl)-3-oxopropionic acid ethyl ester 
• 91555-31-6 4-(3,5-dimethoxyphenyl)butanoic acid 
• 883-07-8 6,8-dimethoxy-3,4-dihydro-2H-naphthalen-1-one 
• 17103-71-8 5-(3,5-dimethoxy-phenyl)-dihydro-furan-2-one 
• 94005-54-6 6-Amino-2,4-dimethoxy-phenanthren-carbonsaeure-⁽¹⁰⁾-methylester 
• 412314-68-2 2,4-Dimethoxy-6-oxo-6,7,8,8a,9,10-hexahydro-phenanthren 

Relevant academic research and scientific papers

Determination and imaging of metabolites from Vitis vinifera leaves by laser desorption/ionisation time-of-flight mass spectrometry

Analysis of grapevine phytoalexins at the surface of Vitis vinifera leaves has been achieved by laser desorption/ionisation time-of-flight mass spectrometry (LDI-ToFMS) without matrix deposition. This simple and rapid sampling method was successfully applied to map small organic compounds at the surface of grapevine leaves. It was also demonstrated that the laser wavelength is a highly critical parameter. Both 266 and 337nm laser wavelengths were used but the 266nm wavelength gave increased spatial resolution and better sensitivity for the detection of the targeted metabolites (resveratrol and linked stilbene compounds). Mass spectrometry imaging of grapevine Cabernet Sauvignon leaves revealed specific locations with respect to Plasmopara viticola pathogen infection or light illumination.