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VivoTag-S 750 Fluorochrome (1mg)

Near-infrared (NIR) fluorescent agent for in vivo imaging and other applications.

For laboratory use only. This product is intended for animal research only and not for use in humans.

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VivoTag®-S 750 Fluorochrome available in 1 mg quantity.  VivoTag-S 750 is an amine-reactive near-infrared (NIR) fluorochrome for coupling via an N-Hydroxysuccinimide (NHS)-ester linkage to peptides, small molecules, proteins, antibodies or macromolecules.  


Optical Imaging Classification Fluorescence Imaging
Product Brand Name VivoTag
Shipping Condition Blue Ice
Unit Size 1 mg
Wave Length 750 nm
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Application Note

VivoTag S Agents (Protocol)

N-Hydroxysuccinimide (NHS)-ester labeling reagents, such as VivoTag®-S reagents, are commonly used for labeling proteins. The NHS ester moiety reacts with amino groups at pH 7-9 to form stable amide bonds. Lysines within proteins, including antibodies, are available as targets for this chemical conjugation.,Protein labeling efficiency may vary depending upon the type of protein labeled, so different conjugation ratios may need to be attempted to attain success. For Near Infrared (NIR) fluorophore conjugation, ratios of fluorophore to protein of 4:1 have been seen to generate effective imaging agents. Not all antibodies or proteins (independent of target specificity) make good imaging agents, due to long half-lives and/or excessive accumulation in non-target sites.

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In Vivo Imaging Solutions eBook

Researchers trust our in vivo imaging solutions to give them reliable, calibrated data that reveals pathway characterization and therapeutic efficacies for a broad range of indications. Our reagents, instruments, and applications support have helped hundreds of research projects over the years. And our hard-earned expertise makes us a trusted provider of pre-clinical imaging solutions— with more than 9,000 peer reviewed articles as proof.



Technical Note

VivoTag-S® 750 (1 mg) (Data Sheet)

VivoTag-S® 750 is an amine reactive (NHS Ester) near-infrared (NIR) fluorochrome for labeling biomolecules for in vivo imaging applications.

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White Paper

The Role of In Vivo Imaging in Drug Discovery and Development

The primary goal of preclinical imaging is to improve the odds of clinical success and reduce drug discovery and development time and costs. Advances in non-invasive in vivo imaging techniques have raised the use of animal models in drug discovery and development to a new level by enabling quick and efficient drug screening and evaluation. Read this White Paper to learn how preclinical in vivo imaging helps to ensure that smart choices are made by providing Go/No-Go decisions and de-risking drug candidates early on, significantly reducing time to the clinic and lowering costs all while maximizing biological understanding.

PDF 748 KB