Our fluorescent dyes offer exceptional brightness, photostability, and versatility for your research. With identical structure to Alexa Fluor, Atto or Cy dyes, they provide the same spectral properties, quality, and reliability for a wide range of fluorescence-based applications. Whether you need precise antibody labeling, confocal and super resolution microscopy or sensitive flow cytometry detection, our fluorescent dyes ensure complete compatibility with existing protocols.

PBlue is a blue fluorescent dye structurally identical to Pacific Blue™. Its bright fluorescence, high quantum yield, and strong signal at neutral pH make it an excellent choice for flow cytometry, fluorescence microscopy, and biomolecule labeling applications.

AF 700 Carboxylic Acid is near-infrared fluorescent dye that is structurally identical to Alexa Fluor 700. Its excellent photostability and low background fluorescence make it well suited for multicolor flow cytometry and other fluorescence-based applications. AF 700 is excited by standard 633-640 nm red lasers and enables sensitive detection while preserving visible-spectrum channels for multiplex experiments. AF 700 Carboxylic Acid is perfect as a reference standard in experiments where it conjugates are used or can be used for synthesis of activated esters or variously modified.

txRED is an orange-red fluorescent dye that is structurally identical to Texas Red-X™. With its high photostability and quantum yield for single-molecule applications, it has become one of the most widely used fluorophores in life sciences. txRED is perfect for a variety of imaging applications, including confocal microscopy, flow cytometry (FACS), and labeling cell cultures and tissues. txRED Carboxylic Acid is a non-reactive dye used as a reference standard or for labeling peptides and proteins. Its carboxyl group can be activated (e.g., sulfo-NHS, TFP) or modified via carbodiimide chemistry for conjugation to amino groups. It’s commonly used in solid-phase peptide synthesis with activators like HATU.

Cyanine 5.5 is a near infrared (NIR) fluorescent dye that is structurally identical to Cy5.5. Known for its exceptionally high extinction coefficient and emission in the NIR spectrum, it is a premier choice for researchers needing to push beyond the limits of standard visible fluorophores. With carboxylic acid Cyanine 5.5 is a non-reactive dye used as a reference standard or for labeling peptides and proteins.

Cyanine 5 is a far-red fluorescent dye that is structurally identical to Cy5. With its high photostability and quantum yield for single-molecule applications, it has become one of the most widely used fluorophores in life sciences. Cyanine 5 is perfect for a variety of imaging applications, including confocal microscopy, flow cytometry (FACS), and labeling cell cultures and tissues. Cyanine 5 Alkyne is used for fluorescent labeling of azidated biomolecules, polymers, and surfaces. Ideal as a reference standard or for labeling peptides and proteins.

AT 590 Carboxylic Acid is a bright orange-fluorescent dye that is structurally identical to Atto 590. With its high photostability and pH resistance, it has become one of the most widely used fluorophores in life sciences. Its hydrophilic nature makes it an ideal choice for labeling sensitive proteins. AT 590 is perfect as a reference standard in experiments where AT 590 conjugates are used or can be used for synthesis of activated esters or variously modified.

AT 488 Carboxylic Acid is a bright green-fluorescent dye that is structurally identical to Atto 488. With its high photostability and pH resistance, it has become one of the most widely used fluorophores in life sciences. Its hydrophilic nature makes it an ideal choice for labeling sensitive proteins. AT 488 is perfect as a reference standard in experiments where AT 488 conjugates are used or can be used for synthesis of activated esters or variously modified.

AF 555-Carboxylic Acid is a bright yellow-fluorescent dye that is structurally identical to Alexa Fluor 555 with Carboxylic Acid. With its high photostability and pH resistance, it has become one of the most widely used fluorophores in life sciences. Its hydrophilic nature makes it an ideal choice for labeling sensitive proteins. AF 555 is perfect as a reference standard in experiments where AF 555 conjugates are used or can be used for synthesis of activated esters or variously modified.

AF 647 Carboxylic Acid is a bright far-red-fluorescent dye that is structurally identical to Alexa Fluor 647. With its high photostability and pH resistance, it has become one of the most widely used fluorophores in life sciences. AF 647 carboxylic acid is a water-soluble dye that can be used as a reference standard and, after activation, for synthesizing AF 647-containing biomolecules.

AF 594 Carboxylic Acid is a bright red-fluorescent dye that is structurally identical to Alexa Fluor 594. With its high photostability and pH resistance, it has become one of the most widely used fluorophores in life sciences. AF 594 with Carboxylic group is ideal as a reference standard or for further synthesis

AF 568 Carboxylic Acid is a bright orange-fluorescent dye that is structurally identical to Alexa Fluor 568. With its high photostability and pH resistance, it has become one of the most widely used fluorophores in life sciences. Its hydrophilic nature makes it an ideal choice for labeling sensitive proteins. AF 568 is perfect as a reference standard in experiments where AF 568 conjugates are used or can be used for synthesis of activated esters or variously modified.

AF 488 Carboxylic Acid is a bright green-fluorescent dye that is structurally identical to Alexa Fluor 488. With its high photostability and pH resistance, it has become one of the most widely used fluorophores in life sciences. Its hydrophilic nature makes it an ideal choice for labeling sensitive proteins. AF 488 is perfect as a reference standard in experiments where AF 488 conjugates are used or can be used for synthesis of activated esters or variously modified.

AF 350 Carboxylic Acid is a blue fluorescent dye that is structurally identical to Alexa Fluor 350. With its high photostability and pH resistance, it is widely used in life science research. Its hydrophilic nature makes it an ideal choice for labeling sensitive proteins. AF 350 is perfect as a reference standard in experiments where AF 350 conjugates are used or can be used for synthesis of activated esters or variously modified.