DNA molecular weight markers stained with Molecular Probes' SYBR Green I
Ethidium bromide (2,7-diamino-10-ethyl-9-phenylphenanthridinium bromide; EtBr) has traditionally been used for staining DNA and RNA in gels (and here) following procedures first published in the early 1970s.1 While the procedures for using EtBr are simple, EtBr is fairly toxic. The material safety data sheet (MSDS) on EtBr does not explicitly list...
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