Free Dyes
Near-IR CF® Dye free acids are control dyes for studies that involve Near-IR CF® Dye succinimidyl ester conjugated to antibody, protein or peptides. We also offer a selection of classic dye free acids.
Near-IR CF® Dye Free Acids
92066, 92070, 92071, - 92159View allHide
Non-reactive, free acid forms of the near-infrared (NIR) CF® dyes that can be used as controls for the corresponding dye-conjugates. Available with the following CF® Dyes: CF®680, CF®750, CF®770, and CF®790.
5-(and-6)-Carboxyrhodamine 6G, Hydrochloride
The free acid form of orange fluorescent 5-(and-6)-carboxyrhodamine 6G mixed isomers.
5-FAM
5-FAM (full name: 5-Carboxyfluorescein, single isomer) is the free acid form of 5-carboxyfluorescein single isomer.
6-FAM
6-FAM (full name: 6-Carboxyfluorescein, single isomer) is the free acid form of 6-carboxyfluorescein single isomer.
Carboxy-X-rhodamine triethylammonium salt, 5 and 6 isomers (5(6)-ROX)
5(6)-ROX [full name: 5-(and-6)-Carboxy-X-rhodamine, triethylammonium salt (mixed isomers)] is a long wavelength rhodamine dye.
Carboxy-X-rhodamine triethylammonium salt, 5-isomer
5-ROX (full name: 5-Carboxy-X-rhodamine, triethylammonium salt, single isomer) is a single isomer, long wavelength rhodamine dye.
Carboxy-X-rhodamine triethylammonium salt, 6-isomer
6-ROX (6-Carboxy-X-rhodamine) is a single isomer, long wavelength rhodamine dye.
Carboxyrhodamine 110 hydrochloride, 5 and 6 isomers
For some applications, 5-(and-6)-carboxyrhodamine (5(6)-CR 110) is a superior alternative to the widely used green fluorescent dye 5-(and-6)-carboxyfluorescein. The dye is insensitive to pH between 4 and 9 and is much more photostable than fluorescein.
Carboxyrhodamine 110-X hydrochloride, 5 and 6 isomers
5-(and-6)-Carboxyrhodamine 110-X (full name: 5-(and-6)-Carboxyrhodamine 110-X, hydrochloride) is similar to 5-(and-6)-carboxyrhodamine 110 (#90000).
Carboxyrhodamine 6G hydrochloride, 5-isomer
5-CR6G (full name: 5-Carboxyrhodamine 6G, hydrochloride, single isomer) is the free acid form of 5-carboxyrhodamine 6G single isomer.
Carboxyrhodamine 6G hydrochloride, 6-isomer
6-CR6G (full name: 6-Carboxyrhodamine 6G, hydrochloride, single isomer) is the free acid form of 6-carboxyrhodamine 6G single isomer.
TAMRA free acid, 5 and 6-isomer
Mixed isomers of carboxytetramethylrhodamine (TAMRA) free acid. The dye can be coupled to primary or secondary amines via standard peptide chemistry.
TAMRA, 5-isomer
Free acid form of 5-TAMRA (5-Carboxytetramethylrhodamine, single isomer).
TAMRA, 6-isomer
Free acid form of 6-TAMRA (6-carboxytetramethylrhodamine) single isomer.
TRITC, 5 isomer
5-TRITC (Tetramethylrhodamine 5-isothiocyanate chloride) is spectrally similar to TAMRA (90022).
TRITC, 6 isomer
6-TRITC (Tetramethylrhodamine 6-isothiocyanate chloride) is spectrally similar to TAMRA (90022).