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MW 473.4 g/mol, Purity >90%. Fluorescent, amine-reactive probe for bioconjugate synthesis. Labels bioconjugates on nucleophilic amines (N-terminus, lysine residues). Labeled bioconjugates resistant to hydrolysis. High stability and performance at physiological pH.

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Images

Chemical Structure - 5(6)-Carboxyfluorescein, NHS ester (AB275365), expandable thumbnail

Key facts

CAS number
17548-22-8
Purity
> 90%
Form
Solid
Molecular weight
473.4 g/mol
Molecular formula
C25H15NO9
Nature
Synthetic
Excitation/Emission
Ex: 495nm, Em: 520nm

Target data

Recommended products

MW 473.4 g/mol, Purity >90%. Fluorescent, amine-reactive probe for bioconjugate synthesis. Labels bioconjugates on nucleophilic amines (N-terminus, lysine residues). Labeled bioconjugates resistant to hydrolysis. High stability and performance at physiological pH.

Key facts

Purity
> 90%
Solubility

Soluble in DMSO.

Biological description

Fluorescent, amine-reactive probe for bioconjugate synthesis. Labels bioconjugates on nucleophilic amines (N-terminus, lysine residues). Labeled bioconjugates resistant to hydrolysis. High stability and performance at physiological pH.

IUPAC name
3',6'-Dihydroxy-3-oxo-spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-ar-carboxylic acid, 2,5-dioxo-1-pyrrolidinyl ester
Excitation/Emission
Ex: 495nm, Em: 520nm

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
-20°C
Appropriate long-term storage conditions
-20°C
Storage information
Store in the dark, Store under desiccating conditions

Product promise

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In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

1 product image

  • Chemical Structure - 5(6)-Carboxyfluorescein, NHS ester (ab275365), expandable thumbnail

    Chemical Structure - 5(6)-Carboxyfluorescein, NHS ester (ab275365)

    Chemical structure of 5(6)-Carboxyfluorescein, NHS ester, 17548-22-8

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Product protocols

For this product, it's our understanding that no specific protocols are required. You can:

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