Synonym: 2′-(4-Ethoxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5′-bi-1H-benzimidazole trihydrochloride, HOE 33342, Hoechst 33342, bisBenzimide 
CAS Number: 23491-52-3 
Empirical Formula (Hill Notation): C27H28N6O  3HCl  xH2O 
Molecular Weight: 561.93 (anhydrous basis) 
Beilstein Registry Number: 1234011 
MDL number: MFCD00012678 
PubChem Substance ID: 24891639 
Description
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Application Useful for staining DNA, chromosomes and nuclei. May be used for fluorescence microscopy or flow cytometry.
Excitation max. = 346 nm
Emission max. = 460 nm 
Biochem/physiol Actions Membrane-permeable, fluorescent DNA stains with low cytotoxicity that intercalate in A-T regions of DNA. 



性质
assay ≥98% (HPLC and TLC) 
EQP level Premium 
solubility H2O: soluble20 mg/mL 
  phosphate buffer: precipitates 
suitability suitable for fluorescence 
storage temp. 20°C 



安全性
Symbol GHS05, GHS07 
Signal word Danger 
Hazard statements H302-H314-H335 
Precautionary statements P261-P280-P305 + P351 + P338-P310 
Hazard Codes Xn 
Risk Statements 22-37/38 
Safety Statements 36/37 
WGK Germany 3