1. Dye Reagents

Fluorescein-5-maleimide (Synonyms: N-(5-Fluoresceinyl)maleimide)

Cat. No.: HY-D0098 Purity: 98.00%
Handling Instructions

Fluorescein-5-maleimide is a fluorescent thiol-reactive dye used to conjugate fluorescein to proteins (excitation: 494 nm, emission: 519 nm).

For research use only. We do not sell to patients.

Fluorescein-5-maleimide Chemical Structure

Fluorescein-5-maleimide Chemical Structure

CAS No. : 75350-46-8

Size Price Stock Quantity
10 mM * 1 mL in DMSO USD 66 In-stock
Estimated Time of Arrival: December 31
10 mg USD 60 In-stock
Estimated Time of Arrival: December 31
25 mg USD 120 In-stock
Estimated Time of Arrival: December 31
50 mg USD 180 In-stock
Estimated Time of Arrival: December 31
100 mg   Get quote  
200 mg   Get quote  

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Customer Review

  • Biological Activity

  • Technical Information

  • Purity & Documentation

Description

Fluorescein-5-maleimide is a fluorescent thiol-reactive dye used to conjugate fluorescein to proteins (excitation: 494 nm, emission: 519 nm).

Solvent & Solubility
In Vitro: 

DMSO : ≥ 32 mg/mL (74.88 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.3399 mL 11.6997 mL 23.3995 mL
5 mM 0.4680 mL 2.3399 mL 4.6799 mL
10 mM 0.2340 mL 1.1700 mL 2.3399 mL
*Please refer to the solubility information to select the appropriate solvent.
Molecular Weight

427.36

Formula

C₂₄H₁₃NO₇

CAS No.

75350-46-8

SMILES

O=C(C=C1)N(C2=CC3=C(C4(C5=C(OC6=C4C=CC(O)=C6)C=C(O)C=C5)OC3=O)C=C2)C1=O

Storage

-20°C, protect from light

Shipping

Room temperature in continental US; may vary elsewhere

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  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass   Concentration   Volume   Molecular Weight *
= × ×

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
× = ×
C1   V1   C2   V2

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Product Name:
Fluorescein-5-maleimide
Cat. No.:
HY-D0098
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Fluorescein-5-maleimide

Cat. No.: HY-D0098