Cyanine3B in Fluorophores

Absorption max 566 nm Emission max 578 nm Fluorophore chart

Cyanine3B is a yellow-emitting cyanine dye that is an improved version of the Cyanine3 fluorophore with significantly higher fluorescence quantum yield and photostability. Due to the fixed conformation, Cyanine3B has the highest emission quantum yield compared to other dyes of this wavelength.

Cyanine3B carboxylic acid

A Cyanine3B derivative with unactivated free carboxy group for use as a control, calibration, and conjugation after pre-activation.
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Cat. # Quantity Price Lead time
2321-1mg 1 mg $110.00 in stock
2321-5mg 5 mg $249.00 in stock
2321-25mg 25 mg $690.00 in stock
2321-50mg 50 mg $1290.00 in stock
2321-100mg 100 mg $2450.00 in stock

Cyanine3B NHS ester

Cyanine3B NHS ester is a reactive dye with significantly increased fluorescence quantum yield and photostability for the specific labeling of amino-groups in biomolecules.
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Cat. # Quantity Price Lead time
19320 1 mg $140.00 in stock
29320 5 mg $340.00 in stock
49320 25 mg $990.00 in stock
59320 50 mg $1690.00 in stock
69320 100 mg please inquire in stock

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