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meta-iodoHoechst 33258
本产品不向个人销售,仅用作科学研究,不用于任何人体实验及非科研性质的动物实验。
meta-iodoHoechst 33258图片
CAS NO:158013-42-4
包装与价格:
包装价格(元)
5mg电议
10mg电议
50mg电议
100mg电议
200mg电议
500mg电议

产品介绍
meta-iodoHoechst 33258是一种蓝色荧光染料,用于染DNA。
生物活性

Hoechst stains are part of a family of blue fluorescent dyes used to stain DNA. IC50 Value: Target: These Bis-benzimides were originally developed by Hoechst AG, which numbered all their compounds so that the dye Hoechst 33342 is the 33342nd compound made by the company. There are three related Hoechst stains: Hoechst 33258, Hoechst 33342, and Hoechst 34580. The dyes Hoechst 33258 and Hoechst 33342 are the ones most commonly used and they have similarexcitation/emission spectra. Both dyes are excited by ultravioletlightat around 350 nm, and both emit blue/cyan fluorescentlightaround anemission maximum at 461 nm. Unbound dye has its maximum fluorescence emission in the 510-540 nm range. Hoechst dyes are soluble in water and in organic solvents such as dimethyl formamide or dimethyl sulfoxide. Concentrations can be achieved of up to 10 mg/mL. Aqueous solutions are stable at 2-6 ℃ for at least six months when protected fromlight. For long-term storage the solutions are instead frozen at ≤-20 ℃. The dyes bind to the minor groove of double-stranded DNA with a preference for sequences rich in adenine andthymine. Although the dyes can bind to all nucleic acids, AT-rich double-stranded DNA strands enhance fluorescence considerably. Hoechst dyes are cell-permeable and can bind to DNA in live or fixed cells. Therefore, these stains are often called supravital, which means that cells survive a treatment with these compounds. Cells that express specific ATP-binding cassette transporter proteins can also actively transport these stains out of their cytoplasm. in vitro: N/A in vivo: N/A Clinical trial: N/A

分子量

534.39

性状

Solid

Formula

C25H23IN6

CAS 号

158013-42-4

Emission (Em)
Em 450-495 nm Blue
Excitation (Ex)
Ex 450-495 nm Blue
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式

4°C, protect from light

*In solvent : -80°C, 6 months; -20°C, 1 month (protect from light)

溶解性数据
In Vitro: 

DMSO :< 1 mg/mL (ultrasonic;warming;heat to 66℃)(insoluble or slightly soluble)

Ethanol :< 1 mg/mL (ultrasonic;warming)(insoluble)