Products

NIR (near infrared) Dyes

NIR (Near-InfraRed) dyes are invisible to the naked eye but increase the staining options when using infrared imaging systems. They have absorption and emission wavelengths in the NIR spectrum, between 670 and 800 nm and offer important advantages over traditional visible light dyes such as enhanced sensitivity due to low background autofluorescence in the near-infrared region and, therefore, higher signal to noise ratios. Since many biological samples such as cells and tissues produce minimal autofluorescence in the near-IR region, near-IR dyes have the potential to offer highly specific and sensitive detection in complex biological systems. As light with a wavelength in the near infrared region has strong tissue penetration, NIR dyes are ideal for in vivo fluorescence imaging, an emerging field that has advanced rapidly in recent years. They only and require inexpensive laser diode excitation and show reduced scattering as well as enhanced tissue penetration depth. Furthermore, NIR dyes are also excellent for Western blots and In-Cell Western® assays.

PromoFluor-670, PromoFluor-680, PromoFluor-700, PromoFluor-750, PromoFluor-770, PromoFluor-780 and PromoFluor-840 are next-generation long wavelength dyes representing a true breakthrough in the field. Other near-IR dyes suffer from problems of limited fluorescence brightness due to excessive dye aggregation and poor stability. The high water solubility of PromoFluor dyes means that a high dye-to-protein ratio can be attained without causing precipitation of the conjugates. PromoFluor NIR dyes are superior alternatives to the respective Alexa Fluor near-infrared dyes.

 

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References, Questions & Answers

Product Name Description Size Catalog Number Information Prices
PromoFluor-670, amino-modified label for coupling to e.g. carboxy groups 1 mg PK-PF670-2-01 click to select country
PromoFluor-670, carboxylic acid free carboxylic acid 5 mg PK-PF670-0-05 click to select country
PromoFluor-670, carboxylic acid free carboxylic acid 1 mg PK-PF670-0-01 click to select country
PromoFluor-670, maleimide for labeling thiol groups of proteins 5 mg PK-PF670-3-05 click to select country
PromoFluor-670, maleimide for labeling thiol groups of proteins 1 mg PK-PF670-3-01 click to select country
PromoFluor-670, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 5 mg PK-PF670-1-05 click to select country
PromoFluor-670, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 1 mg PK-PF670-1-01 click to select country
PromoFluor-670, NHS ester N-hydroxysuccinimidyl ester; For Labeling primary amino groups of proteins and amino-modified nucleic acid 5 x 0.2 mg PK-PF670-1-01A click to select country
PromoFluor-680, amino-modified label for coupling to e.g. carboxy groups 1 mg PK-PF680-2-01 click to select country
PromoFluor-680, carboxylic acid free carboxylic acid 5 mg PK-PF680-0-05 click to select country
PromoFluor-680, carboxylic acid free carboxylic acid 1 mg PK-PF680-0-01 click to select country
PromoFluor-680, maleimide for labeling thiol groups of proteins 5 mg PK-PF680-3-05 click to select country
PromoFluor-680, maleimide for labeling thiol groups of proteins 1 mg PK-PF680-3-01 click to select country
PromoFluor-680, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 5 mg PK-PF680-1-05 click to select country
PromoFluor-680, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 1 mg PK-PF680-1-01 click to select country
PromoFluor-680, NHS ester N-hydroxysuccinimidyl ester; For Labeling primary amino groups of proteins and amino-modified nucleic acid 5 x 0.2 mg PK-PF680-1-01A click to select country
PromoFluor-700P, amino-modified label For coupling to e.g. carboxy groups 1 mg PK-PF700P-2-01 click to select country
PromoFluor-700P, carboxylic acid Free carboxylic acid 1 mg PK-PF700P-0-01 click to select country
PromoFluor-700P, carboxylic acid Free carboxylic acid 5 mg PK-PF700P-0-05 click to select country
PromoFluor-700P, maleimide For labeling thiol groups of proteins 1 mg PK-PF700P-3-01 click to select country
PromoFluor-700P, maleimide For labeling thiol groups of proteins 5 mg PK-PF700P-3-05 click to select country
PromoFluor-700P, NHS-Ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 1 mg PK-PF700P-1-01 click to select country
PromoFluor-700P, NHS-Ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 5 x 0.2 mg PK-PF700P-1-01A click to select country
PromoFluor-700P, NHS-Ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 5 mg PK-PF700P-1-05 click to select country
PromoFluor-750, amino-modified label for coupling to e.g. carboxy groups 1 mg PK-PF750-2-01 click to select country
PromoFluor-750, carboxylic acid free carboxylic acid 5 mg PK-PF750-0-05 click to select country
PromoFluor-750, carboxylic acid free carboxylic acid 1 mg PK-PF750-0-01 click to select country
PromoFluor-750, maleimide for labeling thiol groups of proteins 5 mg PK-PF750-3-05 click to select country
PromoFluor-750, maleimide for labeling thiol groups of proteins 1 mg PK-PF750-3-01 click to select country
PromoFluor-750, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 5 mg PK-PF750-1-05 click to select country
PromoFluor-750, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 1 mg PK-PF750-1-01 click to select country
PromoFluor-750, NHS ester N-hydroxysuccinimidyl ester; For Labeling primary amino groups of proteins and amino-modified nucleic acid 5 x 0.2 mg PK-PF750-1-01A click to select country
PromoFluor-770, amino-modified label for coupling to e.g. carboxy groups 1 mg PK-PF770-2-01 click to select country
PromoFluor-770, carboxylic acid free carboxylic acid 5 mg PK-PF770-0-05 click to select country
PromoFluor-770, carboxylic acid free carboxylic acid 1 mg PK-PF770-0-01 click to select country
PromoFluor-770, maleimide for labeling thiol groups of proteins 5 mg PK-PF770-3-05 click to select country
PromoFluor-770, maleimide for labeling thiol groups of proteins 1 mg PK-PF770-3-01 click to select country
PromoFluor-770, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 5 mg PK-PF770-1-05 click to select country
PromoFluor-770, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 1 mg PK-PF770-1-01 click to select country
PromoFluor-770, NHS ester N-hydroxysuccinimidyl ester; For Labeling primary amino groups of proteins and amino-modified nucleic acid 5 x 0.2 mg PK-PF770-1-01A click to select country
PromoFluor-780, amino-modified label for coupling to e.g. carboxy groups 1 mg PK-PF780-2-01 click to select country
PromoFluor-780, carboxylic acid free carboxylic acid 5 mg PK-PF780-0-05 click to select country
PromoFluor-780, carboxylic acid free carboxylic acid 1 mg PK-PF780-0-01 click to select country
PromoFluor-780, maleimide for labeling thiol groups of proteins 5 mg PK-PF780-3-05 click to select country
PromoFluor-780, maleimide for labeling thiol groups of proteins 1 mg PK-PF780-3-01 click to select country
PromoFluor-780, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 5 mg PK-PF780-1-05 click to select country
PromoFluor-780, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 1 mg PK-PF780-1-01 click to select country
PromoFluor-780, NHS ester N-hydroxysuccinimidyl ester; For Labeling primary amino groups of proteins and amino-modified nucleic acid 5 x 0.2 mg PK-PF780-1-01A click to select country
PromoFluor-840, carboxylic acid free carboxylic acid 5 mg PK-PF840-0-05 click to select country
PromoFluor-840, carboxylic acid free carboxylic acid 1 mg PK-PF840-0-01 click to select country
PromoFluor-840, maleimide for labeling thiol groups of proteins 5 mg PK-PF840-3-05 click to select country
PromoFluor-840, maleimide for labeling thiol groups of proteins 1 mg PK-PF840-3-01 click to select country
PromoFluor-840, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 5 mg PK-PF840-1-05 click to select country
PromoFluor-840, NHS ester N-hydroxysuccinimidyl ester; for labeling primary amino groups of proteins and amino-modified nucleic acid 1 mg PK-PF840-1-01 click to select country
PromoFluor-840, NHS ester N-hydroxysuccinimidyl ester; For Labeling primary amino groups of proteins and amino-modified nucleic acid 5 x 0.2 mg PK-PF840-1-01A click to select country