The dye Ethyl Green (C.I. 42590; C27H35BrClN3) is a triarylmethane dye.[1][2][3] It is soluble in water.[3]
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Its CAS number is and its SMILES structure is C/[N+](C)=C (C=C3)/C=C\C3=C (C2=CC=C([N+](C) (CC)C)C=C2)/C1=C C=C(N(C)C)C=C1.
Ethyl green is made of crystal violet by adding an ethyl group; crystal violet is therefore a possible contaminant.[3]
Methyl green is a closely related dye used as a stain in histology.[3] Ethyl green is also used as a histological dye.[1]