Question 1

What is the catalog number for Fluorescein-5-maleimide?

Accepted Answer

The catalog number for Fluorescein-5-maleimide is orb1307188.

Question 2

What sizes are available for Fluorescein-5-maleimide?

Accepted Answer

Fluorescein-5-maleimide is available in the following size(s): 5 mg, 1 ml x 10 mM (in DMSO), 10 mg, 25 mg, 50 mg, 100 mg.

Question 3

How many pack sizes does Fluorescein-5-maleimide come in?

Accepted Answer

Fluorescein-5-maleimide is available in 6 different pack sizes.

Question 4

Is Fluorescein-5-maleimide in stock?

Accepted Answer

Fluorescein-5-maleimide is currently made to order / not held in immediate stock. Contact us for lead time.

Question 5

Where can I find the safety data sheet (SDS/MSDS) for Fluorescein-5-maleimide?

Accepted Answer

The safety data sheet for Fluorescein-5-maleimide is available here: https://www.biorbyt.com/images/pub/media/additional_documents/New_site/MSDS/orb1307188.pdf.

Question 6

What is Fluorescein-5-maleimide used for?

Accepted Answer

Fluorescein-5-maleimide is a green-fluorescent probe (Ex/Em ~494/519 nm) designed for selectively labeling cysteine thiol groups in proteins and peptides. It is widely used for in vitro bioconjugation, protein folding studies, and tracking biomolecules in cellular imaging applications.

Question 7

Is there an additional fee for hazardous or dry ice shipping of this product?

Accepted Answer

Yes, if this product requires dry ice or is classed as hazardous for transport, the additional fee will be explicitly shown in your quotation before you confirm the order, so there are no surprise charges later.

Question 8

How many freeze-thaw cycles can this product tolerate?

Accepted Answer

We recommend aliquoting the product upon receipt to avoid repeated freeze-thaw cycles, which can reduce activity and stability. This is your responsibility once the product has been delivered.

Question 9

Is antigen retrieval required for IHC with this antibody?

Accepted Answer

Recommended antigen retrieval methods, where applicable, are listed on the datasheet under the IHC protocol section.

Fluorescein-5-maleimide

Product Specifications

CAS Number

Product Name Alternative

Purity

Solubility

Molecular Weight

Storage Conditions

Notes

Available Sizes

Frequently Asked Questions

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