Acid/Fluorescein PEG reagent, Fluorescein-PEG5-Acid, Purity 98%

Synonym: 2183440-40-4; Fluorescein-PEG5-acid; 1-((3',6'-Dihydroxy-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthen]-5-yl)amino)-1-thioxo-5,8,11,14,17-pentaoxa-2-azaicosan-20-oic acid; AKOS040741733; BP-23884

CAS Number: 2183440-40-4
PubChem CID: 131954353

Size

25 mg; 50 mg; 100 mg

Price

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Datasheet

Datasheet

MSDS

MSDS

Properties

Description

Fluorescein-PEG5-acid is a xanthene dye with excitation/emission maxima of 494/517 nm and a terminal carboxyl acid.

Molecular Weight

698.8

Molecular Formula

C₃₄H₃₈N₂O₁₂S

Functional Group 1

Acid

Functional Group 2

Fluorescein

Functional Group 3

None

Reactive Group 1

Amine

Form

Solid

Purity

98%

Solubility

Water, DMSO, DMF, DCM

Identity

Confirmed by NMR.

Applications

Fluorescein-PEG5-acid can react with primary amine groups to form stable amide bonds and is used as a quantum yield standard, with enhanced solubility in aqueous media due to its hydrophilic PEG spacer.

Storage

Store at -20°C.

For Research Use Only. Not For Clinical Use.