7-Aminoactinomycin D

**Semantic type:** Indicator, Reagent, or Diagnostic Aid

**Definition:** A fluorescent nucleic acid dye which selectively binds GC sequences in double-stranded DNA. It has a molecular weight of 1270.5, an absorbance maximun at 546 nm, and emission maximum at 647 nm. It is commonly used to discriminate viable from non-viable cells.

**Synonyms:** - 7-AAD - 7-AMINOACTINOMYCIN D - 7-Amino-AMD - 7-Amino-Actinomycin D - 7AAD