![]() ![]() ![]() The structures were elucidated by 2D NMR spectroscopy and LC-MS. ![]() These latter compounds are most probably formed by esterification of 2 with the solvent (acidified methanol) during the isolation process. In addition to 1 and 2, two analogues of 2 methylated at the terminal carboxyl group of the acyl moiety (3) or at the aglycone carboxyl (4), respectively, were also identified. This aglycone, 5-carboxy-2-(3,4-dihydroxyphenyl)-3,8-dihydroxy-pyrano-1-benzopyrylium, is with exception of the substitution pattern on the phenyl ring similar to carboxypyranomalvidin (vitisidin A) recently isolated from red wines. The structures of 1 and 2 were identified as the 3-O-beta-glucopyranoside and 3-O-(6"-O-malonyl-beta-glucopyranoside) of 5-carboxypyranocyanidin, respectively. r/TOR Opinions like this are dangerous, every privacy oriented tool is going to have its bad actors, this person, quoted in an article about Gary Glitter using the TOR network, states that People use the Dark Web for nefarious purposes. Tampoco permite que las redes inalámbricas inseguras. Emplea un sistema tunelizado y encripta la dirección IP para que no sea invisible para los portales online. Red Onion - Tor Browser es un navegador web móvil enfocado a salvaguardar al máximo tu privacidad siempre que accedas a internet. Four anthocyanins with the same novel 4-substituted aglycone, carboxypyranocyanidin, have been isolated from acidified, methanolic extracts of the edible scales as well as from the dry outer scales of red onion, Allium cepa L. Navegador web móvil gratuito con tecnología Tor. ![]()
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