5(6)-(Biotinamidohexanoylamido)pentylthioureidylfluorescein
5(6)-(Biotinamidohexanoylamido)pentylthioureidylfluorescein (CAS: 134759-22-1) is a biochemical reagent with the molecular formula C42H50N6O8S2 and a molecular weight of 831.01 g/mol. This fluorescein derivative is employed in biological research for its fluorescent properties, enabling visualisation and tracking in cellular and molecular studies. It is particularly useful in assays requiring fluorescent labelling and detection.
- IUPAC
- Fluorescein biotin

Fluorescent Labelling
Utilised for the fluorescent labelling of biomolecules and cellular structures. Its unique chemical structure allows for specific conjugation and subsequent detection via fluorescence microscopy or spectroscopy.
Biochemical Assays
Serves as a key reagent in various biochemical assays where fluorescence detection is critical. It aids in quantifying molecular interactions or identifying specific cellular components through its emissive properties.
Cell Biology Research
Applied in cell biology to visualise cellular processes, track molecules within cells, or as a probe for specific cellular targets. Its fluorescent nature aids in understanding dynamic cellular events.
Diagnostic Probes
Investigated for potential use as a diagnostic probe in various biological and medical research settings. Its ability to emit light upon excitation makes it valuable for developing sensitive detection methods.
| Molecular weight | 831.01 |
|---|---|
| Empirical formula | C42H50N6O8S2 |
| Assay | ≥90% |
| Storage temperature | −20°C |
| 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.
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 5(6)-(Biotinamidohexanoylamido)pentylthioureidylfluorescein used for?
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This compound is primarily used as a fluorescent labelling agent and biochemical reagent in research, particularly within cell biology and for developing fluorescent probes and assays.
What is the CAS number and molecular formula for this product?
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The CAS number is 134759-22-1 and the molecular formula is C42H50N6O8S2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product with an assay of ≥90%. This is a research-grade chemical and is not represented as USP, BP, EP, or any other pharmacopoeia standard.
How should 5(6)-(Biotinamidohexanoylamido)pentylthioureidylfluorescein be handled and stored?
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Handle with appropriate personal protective equipment, including eyeshields and gloves. A P1/N95 respirator filter is recommended. Store at -20°C.
Is this chemical subject to any special regulations?
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This product has a WGK Germany rating of 3, indicating a high hazard to water. Please consult local regulations for specific handling and disposal requirements.
How is this chemical packed, shipped, and exported?
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Tech Serve Solutions packages and exports fine chemicals globally, adhering to all necessary international shipping and customs regulations for hazardous materials.
How can I request a sample or quote for 5(6)-(Biotinamidohexanoylamido)pentylthioureidylfluorescein?
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Please contact our sales team via the website or directly by phone to request a quotation or to arrange for a product sample.
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