3,5,6,8-tetrahydroxy-1-methyl-9,10-dioxo-7-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]anthracene-2-carboxylic acid

13C nuclear magnetic resonance spectroscopy (13C NMR)

1H nuclear magnetic resonance spectroscopy (1H NMR)

1H--13C heteronuclear multiple bond coherence (13C-1H HMBC)

1H--13C heteronuclear single quantum coherence (1H-13C HSQC)

1H--1H correlation spectroscopy (1H-1H COSY)

1H--1H nuclear Overhauser enhancement spectroscopy (1H-1H NOESY)

Carminic acid; LC-ESI-QFT; MS2; CE: 15; R=17500; [M-H]-

Carminic acid; LC-ESI-QFT; MS2; CE: 30; R=17500; [M-H]-

Carminic acid; LC-ESI-QFT; MS2; CE: 45; R=17500; [M-H]-

Carminic acid; LC-ESI-QFT; MS2; CE: 60; R=17500; [M-H]-

Carminic acid; LC-ESI-QFT; MS2; CE: 75; R=17500; [M-H]-

Carminic acid; LC-ESI-QFT; MS2; CE: 90; R=17500; [M-H]-

circular dichroism spectroscopy (CD spectrometry)

electrospray ionisation tandem mass spectrometry (ESI-MS2)

NMR_Bruker-FID[1]

NMR_Bruker-FID[2]

NMR_Bruker-FID[3]

NMR_Bruker-FID[4]

NMR_Bruker-FID[5]

NMR_Bruker-FID[6]

ultraviolet-visible spectrophotometry (UV-VIS)

ultraviolet-visible spectrophotometry (UV-VIS)

ultraviolet-visible spectrophotometry (UV-VIS)