CA Index Name: Pyridinium, 4-[4-[4-(dipentylamino) phenyl]-1,3-butadienyl]-1-(4-sulfobutyl)-, inner salt
Other Names: 4-{4-[4-(Dipentylamino)phenyl]-1,3-butadienyl}-1-(4-sulfobutyl)pyridinium hydroxide; RH 421
Merck Index Number: Not listed
Chemical / Dye Class: Styryl
Molecular Formula: C29H42N2O3S
Molecular Weight: 498.72
Physical Form: Red powder
Solubility: Soluble in ethanol, methanol, dimethyl sulfoxide, N,N-dimethylformamide
Melting Point: > 200 °C
Absorption (λmax): 515 nm
Emission (λmax): 704 nm
Synthesis: Synthetic method
Staining Applications: Cardiac tissues; lipid membranes; proteins; neurons
Biological Applications: Measuring membrane potential
Industrial Applications: Photoresists
Safety / Toxicity: No data available