FLUORESCEIN-5-MALEIMIDE Chemical Properties

Melting point:

>275°C (dec.)

Boiling point:

769.1±60.0 °C(Predicted)

Density 

1.73±0.1 g/cm3(Predicted)

storage temp. 

Keep in dark place,Inert atmosphere,2-8°C

solubility 

Acetone (Slightly), DMSO (Slightly), Methanol (Slightly)

pka

9.31±0.20(Predicted)

form 

Red powder.

color 

Orange to Brown

Appearance

Orange to Brown Solid

Stability:

Light Sensitive

InChI

InChI=1S/C24H13NO7/c26-13-2-5-17-19(10-13)31-20-11-14(27)3-6-18(20)24(17)16-4-1-12(9-15(16)23(30)32-24)25-21(28)7-8-22(25)29/h1-11,26-27H

InChIKey

AYDAHOIUHVUJHQ-UHFFFAOYSA-N

SMILES

N1(C2C=CC3C4(C5=C(C=C(O)C=C5)OC5=C4C=CC(O)=C5)OC(=O)C=3C=2)C(=O)C=CC1=O

CAS DataBase Reference

75350-46-8

Safety Information

Hazard Codes 

Xn

Risk Statements 

22

WGK Germany 

3

HS Code 

29251900

FLUORESCEIN-5-MALEIMIDE Usage And Synthesis

Description

Fluorescein-5-maleimide is a thiol reactive fluorescent probe used to label peptides and proteins.

Chemical Properties

Brown Crystals

Uses

Fluorescein-5-maleimide is the most widely used green fluorescent thiol-reactive dye. The reaction requires very mild condition and is highly specific.

Uses

Fluorescent labeling reagent for proteins and peptides.

Excitation / Emission Maximum

494 nm/519 nm

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