[DIYbio] $400 for 200uL YOYO-1 DNA dye, is there cheaper bis-intercalator dye?

I came across this, it was used to visualise single DNA molecules in nanochannels... I'm guessing it's good at this because it has two dye molecules just nanometers apart, which also have high affinity to DNA and 1000X fluorescence intensity increase upon binding.

It's crazy to me to pay so much though, Its been around since mid-90s at least...

http://products.invitrogen.com/ivgn/product/Y3601


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-Nathan

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