NIR 5e
NIR 5e (CAS: 162411-31-6) is a cyanine dye with a molecular weight of 834.37 g/mol and the empirical formula C46H46BrClN4S2. Supplied by Tech Serve Solutions as a BioReagent, this compound is suitable for fluorescence applications. It exhibits fluorescence with excitation at 822 nm and emission at 844 nm in methanol, making it valuable for various fluorescent labelling and probing techniques in research settings.
- IUPAC
- 1,1′-Bis(3-isothiocyanatopropyl)-11-chloro-4,5:4′,5′-dibenzo-3,3,3′,3′-tetramethyl-10,12-trimethylenindotricarbocyanine bromide

Fluorescent Labelling
NIR 5e serves as a fluorescent label, enabling the visualisation and tracking of biological molecules or structures in research assays. Its spectral properties are suitable for specific detection methods.
Fluorescence Probes
This compound can be utilised as a fluorescence probe in biochemical and cell biology research. Its distinct excitation and emission wavelengths allow for targeted applications in imaging and analysis.
Research Reagent
As a BioReagent, NIR 5e is provided for general laboratory research. It is intended for use in scientific investigations where its fluorescent properties are advantageous.
| Molecular weight | 834.37 |
|---|---|
| Empirical formula | C46H46BrClN4S2 |
| Assay | ≥80% (HPCE) |
| Storage temperature | 2-8°C |
| Suitability | suitable for fluorescence |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Product Line | BioReagent |
|---|---|
| Fluorescence | λex 822 nm; λem 844 nm in methanol |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is NIR 5e used for?
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NIR 5e is used as a fluorescent label and probe in biochemical and biological research, suitable for applications requiring specific fluorescent detection.
What are the CAS number and formula for NIR 5e?
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The CAS number for NIR 5e is 162411-31-6, and its empirical formula is C46H46BrClN4S2.
What grade and purity does Tech Serve Solutions supply for NIR 5e?
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Tech Serve Solutions supplies NIR 5e with an assay of ≥80% (HPCE). This product is suitable for fluorescence applications and is provided as a BioReagent for research purposes; TSS does not represent it as USP, BP, or EP grade.
What are the safety and handling recommendations for NIR 5e?
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When handling NIR 5e, it is essential to use appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used. The compound has a WGK Germany classification of 3, indicating a high hazard to water.
How is NIR 5e typically stored and shipped?
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NIR 5e should be stored at 2-8°C. Tech Serve Solutions exports this chemical globally, adhering to all necessary regulations for safe transport.
How can I request a sample or quote for NIR 5e?
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To request a sample or a quotation for NIR 5e, please contact the Tech Serve Solutions sales team through our website or by phone.
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