5(6)-Carboxyfluorescein
5(6)-Carboxyfluorescein (CAS: 72088-94-9, C21H12O7) is a fluorescent polyanionic probe supplied by Tech Serve Solutions. With a molecular weight of 376.32, this compound is suitable for fluorescence applications. It is primarily utilised in scientific research for measuring changes in intracellular pH and monitoring processes such as dendrimer aggregation and absorption, making it a valuable tool in biochemical and detection studies.

Intracellular pH Measurement
5(6)-Carboxyfluorescein serves as a fluorescent probe to detect and quantify alterations in intracellular pH (pHi). Its sensitivity to pH changes allows for real-time monitoring in biological systems.
Dendrimer Aggregation Studies
This compound is employed to monitor and analyse processes like dendrimer aggregation. Its fluorescent properties facilitate the visual tracking and quantification of these molecular assemblies.
Absorption Monitoring
5(6)-Carboxyfluorescein can be used in the study of absorption phenomena. Its spectral characteristics enable researchers to track and understand absorption dynamics in various experimental setups.
| Molecular weight | 376.32 |
|---|---|
| Empirical formula | C21H12O7 |
| Assay | ≥95% (HPLC) |
| Application | 5(6)-Carboxyfluorescein, fluorescent polyanionic probe, and its derivatives such as 2′,7′-bis (2-carboxyethyl)-5(6)-carboxyfluorescein are used to measure changes in intracellular pH (pHi) and processes such as dendrimer aggregation and absorption. |
| Suitability | suitable for fluorescence |
| Melting point | 275 °C (dec.)(lit.) |
| 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 492 nm; λem 517 nm in 0.1 M Tris pH 8.0 |
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)-Carboxyfluorescein used for?
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5(6)-Carboxyfluorescein is a fluorescent polyanionic probe used to measure changes in intracellular pH (pHi) and monitor processes such as dendrimer aggregation and absorption.
What are the CAS number and formula for 5(6)-Carboxyfluorescein?
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The CAS number for 5(6)-Carboxyfluorescein is 72088-94-9, and its molecular formula is C21H12O7.
What grade and purity does Tech Serve Solutions supply for 5(6)-Carboxyfluorescein?
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Tech Serve Solutions supplies 5(6)-Carboxyfluorescein with an assay of ≥95% (HPLC). This product is a BioReagent grade and is not represented as USP, BP, or EP grade.
What are the safety and handling requirements for 5(6)-Carboxyfluorescein?
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Handling 5(6)-Carboxyfluorescein requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. The compound has a WGK Germany rating of 3, indicating it is hazardous to water.
How is 5(6)-Carboxyfluorescein packed and shipped?
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5(6)-Carboxyfluorescein is available for export globally by Tech Serve Solutions. Specific packaging details are confirmed upon order, adhering to international shipping regulations.
How can I request a sample or quote for 5(6)-Carboxyfluorescein?
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To request a sample or a quote for 5(6)-Carboxyfluorescein, please contact the Tech Serve Solutions sales team via our website or by phone.
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