Reactive CF® Dyes, Other Reactive Dyes & Biotinylation Reagents

Amine-reactive form of single isomer carboxyrhodamine 110. For certain applications, the dye is preferred over the corresponding 6-carboxyfluorescein because of its exceptional photostability and fluorescence insensitivity to pH change (4-9).

CR110-C6-maleimide (full name: 5(6)-Carboxyrhodamine 110-C6-maleimide) is a maleimide derivative of the green fluorescent dye carboxyrhodamine 110.

5-CR110-PEO₃-amine has a long water-soluble PEG spacer that separates the green fluorescent CR110 and the amine functional group.

5-CR110-PEO₄ SE (full name: 5-Carboxyrhodamine 110-PEO₄-propionate, succinimidyl ester, single isomer) is an excellent green fluorescent rhodamine dye for labeling amines. The dye has better solubility than the parent dye 5-CR110 SE and its long PEG spacer should reduce any steric effect of the dye on the molecule to be labeled.

5-(and-6)-Carboxyrhodamine 110-X (full name: 5-(and-6)-Carboxyrhodamine 110-X, hydrochloride) is similar to 5-(and-6)-carboxyrhodamine 110 (#90000).

5-(and-6)-Carboxyrhodamine 110-X, succinimidyl ester (5(6)-CR 110-X, SE) readily couples to a primary or secondary amine. The dye is a superior alternative to 5(6)-SFX because of its exceptional phototostability and fluorescence insensitivity to pH (4-9).

5-CR110-X, SE (full name: 5-Carboxyrhodamine 110-X, succinimidyl ester) is the amine-reactive form of 5-carboxyrhodamine 110 with a 6-carbon spacer.

5-CR6G (full name: 5-Carboxyrhodamine 6G, hydrochloride, single isomer) is the free acid form of 5-carboxyrhodamine 6G single isomer.

6-CR6G (full name: 6-Carboxyrhodamine 6G, hydrochloride, single isomer) is the free acid form of 6-carboxyrhodamine 6G single isomer.

Amine-reactive form of 5-carboxyrhodamine 6G single isomer.

Amine-reactive form of 6-carboxyrhodamine 6G single isomer.

CBQCA (3-(4-carboxybenzoyl)quinoline-2-carboxaldehyde) reacts specifically with primary amines to form conjugates that can be analyzed by electrophoretic or chromatographic methods. CBQCA also reacts with hydrophilic peptides and amino sugars.

5-(and-6)-Carboxy-2′,7′-dichlorofluorescein diacetate, succinimidyl ester is a useful fluorescent tracer that can passively diffuse into cells and covalently label intracellular proteins, resulting in long-term cell labeling. The reagent itself is colorless and nonfluorescent but becomes brightly green fluorescent once it is hydrolyzed by intracellular esterases.

5(6)-CFDA, SE (full name: 5-(and-6)-Carboxyfluorescein diacetate, succinimidyl ester, also known as CFSE) is a useful fluorescent tracer that can passively diffuse into cells and covalently label intracellular proteins, resulting in long-term cell labeling. The reagent itself is colorless and non-fluorescent but becomes brightly green fluorescent once it is hydrolyzed by intracellular esterases.

The thiol-reactive quencher, CFQ520 maleimide, has a broad and intense absorption (approximately 520 nm) but no fluorescence, making it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications.

The amine-reactive quencher, CFQ520 succinimidyl ester, has a broad and intense absorption (approximately 520 nm) but no fluorescence, making it useful as an acceptor in fluorescence resonance energy transfer (FRET) applications.