ORGLIST:Vanillin changes colour

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From: Jörg Osthaus (joerg.osthaus$##$vr-web.de)
Date: Fri Aug 02 2002 - 11:33:21 EDT

Hello,
can anybody tell me the reason why pure vanillin changes colour to pink during storage? It is maybe possible that a reaction is catalysed by metal-ions or something else.
Thank you for your help!

Best regards,
Jörg Osthaus

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