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N-(5-Fluoresceinyl)maleimide

SIGMA/38132 - suitable for fluorescence, ≥90% (HPLC), BioReagent

Synonym: 5-Maleimido-fluorescein

CAS Number: 75350-46-8
Empirical Formula (Hill Notation): C24H13NO7
Molecular Weight: 427.36
MDL Number: MFCD00077345
Linear Formula: C24H13NO7
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-38132-25MG 25 mg
 $376.00
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assay ≥90% (HPLC)
fluorescence λex 490 nm; λem 518 nm in 0.1 M Tris pH 8.0
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
InChI key AYDAHOIUHVUJHQ-UHFFFAOYSA-N
product line BioReagent
Quality Level 100 
SMILES string Oc1ccc2c(Oc3cc(O)ccc3C24OC(=O)c5cc(ccc45)N6C(=O)C=CC6=O)c1
storage temp. 2-8°C
suitability corresponds for coupling to thiols
  suitable for fluorescence
Application: N-(5-Fluoresceinyl) maleimide or fluorescein-5-maleimide is used as a fluorescent biosensor to detect nanoparticles.

N-(5-Fluoresceinyl) maleimide (5-FM) is used to fluorescence label molecules such as proteins and peptides via their thiol groups.
General description: N-(5-Fluoresceinyl) maleimide, also known as fluorescein-5-maleimide (FM), is a fluorescent derivatization reagent. The pH during the derivatization reaction plays a critical role.
Packaging: Bottomless glass bottle. Contents are inside inserted fused cone.
Symbol GHS07  GHS07
Signal word Warning
Hazard statements H302
Hazard Codes Xn
Risk Statements 22
RIDADR NONH for all modes of transport
WGK Germany WGK 3
Flash Point(F) Not applicable
Flash Point(C) Not applicable
Purity ≥90% (HPLC)
Storage Temp. 2-8°C
UNSPSC 12352111

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