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Head to https://squarespace.com/amateurchemistry to save 10% off your first purchase of a website or domain using code AMATEURCHEMISTRY In this video I follow an obscure synthesis to turn benzaldehyde into a fluorescent dye with a 33-letter name using cool reagents like bromine and UV light while rejecting the sun and becoming a magician by making some very important crystals disappear. If you enjoyed the video consider liking it, sharing it with a friend, and subscribing to my channel - I would really appreciate that :) If you want to further support my work and watch exclusive content here's my Patreon - / amateurchemistry Instagram - / amateur_chemistry TikTok - / amateurchemistry Twitter (X) - https://x.com/AmateurChemist_ Also, excuse me for my poor speaking, English is not my native language so I have some trouble with pronunciation, in case you don't understand something there are always subtitles made by me. 0:00 Intro 4:25 Making a xanthene derivative using benzaldehyde, 2-naphthol, and glacial acetic acid 9:11 Brominating the xanthene 15:31 Making BNAX using a UV light driven photoreaction in acetonitrile 19:49 Experimenting with BNAX 22:29 Outro #chemistry #experiment #beautiful #demonstration #science #interesting #cool #reaction #dye #art #colors #bromine #cherry #glow #sun #fluorescence