33342 荧光染料
产品说明:Hoechst 33342,也称bisBenzimide H 33342或HOE 33342。分子式为C27H28N6O·3HCl·3H2O,分子量为615.99,CAS Number 23491-52-3。
Hoechst 33342是一种可以穿透细胞膜的蓝色荧光染料,对细胞的毒性较低。
Hoechst 33342染色常用于细胞凋亡检测,染色后用荧光显微镜观察或流式细胞仪检测。Hoechst 33342也常用于普通的细胞核染色,或常规的DNA染色。
Hoechst 33342的Z大激发波长为346nm,Z大发射波长为460nm;Hoechst 33342和双链DNA结合后,Z大激发波长为350nm,Z大发射波长为461nm。
溶解度: Hoechst 33342溶于水,溶解度可达20mg/ml。
用途:用于细胞核染色时,推荐的Hoechst 33342工作浓度为0.5-10μg/ml。
Sigma相关资料:
Sigma-Aldrich B2261 bisBenzimide H 33342 trihydrochloride
≥98% (HPLC and TLC)
Synonym: | bisBenzimide, HOE 33342, Hoechst 33342, 2′-(4-Ethoxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5′-bi-1H-benzimidazole trihydrochloride |
CAS Number: | 23491-52-3 |
Linear Formula: | C27H28N6O · 3HCl · xH2O |
Molecular Weight: | 561.93 (anhydrous basis) |
Beilstein Registry Number: | 1234011 |
EC Number: | 245-691-1 |
MDL number: | MFCD00012678 |
PubChem Substance ID: | 24891639 |
Description
Frequently Asked Questions | Live Chat and Frequently Asked Questions are available for this Product. |
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. |
Properties
assay | ≥98% (HPLC and TLC) |
solubility | H2O: 20 mg/mL |
| phosphate buffers: precipitates |
suitability | passes application test for fluorescence |
storage temp. | −20°C |
Safety
Hazard Codes | Xn |
Risk Statements | 22-37/38 |
Safety Statements | 36/37 |
WGK Germany | 1 |
品名 | 产地 | 货号 | 规格 | 单价 | 备注 |
HoechstNo. 33342 荧光染料 | Sigma | B2261 | 25mg | 询价 | 现货 |