FAM maleimide,熒光素馬來(lái)酰亞胺染料
目前Cyanine系列染料以兩種異構(gòu)體的形式存在，一種是非磺化花青素（non-sulfonated cyanines），一種是磺化花青素（sulfonatedcyanine）。兩者的光譜性質(zhì)幾乎*，因此大部分應(yīng)用可相互替換。

FAM maleimide,熒光素馬來(lái)酰亞胺染料

產(chǎn)品介紹

FAM maleimide, 6-isomer

FAM (fluorescein) is a bright fluorophore which is patible with various fluorescence detection instruments. FAM is a universal dye that is useful for microscopy, PCR and many other methods as well as for FRET-based and fluorescence polarization based binding assays.

FAM maleimide is a thiol reactive dye for the labeling of proteins, peptides, and other thiolated molecules.

General properties

Appearance:	yellow solid
Mass spec M+ increment:	498.4
Molecular weight:	498.44
Molecular formula:	C27H18N2O8
Solubility:	good in DMSO, DMF
uality con*rol:	NMR 1H, HPLC-MS (95%)
Storage conditions:	Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.

Spectral properties

Excitation maximum, nm:	494
ε, L⋅mol−1⋅cm−1:	75000
Emission maximum, nm:	520
Fluorescence uantum yield:	0.9
CF260:	0.20
CF280:	0.17

結(jié)構(gòu)式：

 

FAM maleimide,熒光素馬來(lái)酰亞胺染料

西安凱新生物科技有限公司

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